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30231311112222 = 23112175994089259
BaseRepresentation
bin1101101111110110001101…
…00011110101100000011110
310222001002022001100202012120
412313323012203311200132
512430302211121042342
6144144023403043410
76240066033403533
oct667730643654036
9128032261322176
1030231311112222
1196a6032aa3300
123483044b10566
1313b3a5364c35c
147672bba8ad8a
153765bc00eaec
hex1b7ec68f581e

30231311112222 has 96 divisors (see below), whose sum is σ = 70485756768000. Its totient is φ = 8607724519680.

The previous prime is 30231311112157. The next prime is 30231311112257. The reversal of 30231311112222 is 22221111313203.

It is a junction number, because it is equal to n+sod(n) for n = 30231311112192 and 30231311112201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5348229 + ... + 9437487.

It is an arithmetic number, because the mean of its divisors is an integer number (734226633000).

Almost surely, 230231311112222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30231311112222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35242878384000).

30231311112222 is an abundant number, since it is smaller than the sum of its proper divisors (40254445655778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30231311112222 is a wasteful number, since it uses less digits than its factorization.

30231311112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089902 (or 4089891 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 30231311112222 its reverse (22221111313203), we get a palindrome (52452422425425).

The spelling of 30231311112222 in words is "thirty trillion, two hundred thirty-one billion, three hundred eleven million, one hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 3 6 11 17 22 33 34 51 66 102 121 187 242 363 374 561 599 726 1122 1198 1797 2057 3594 4114 6171 6589 10183 12342 13178 19767 20366 30549 39534 61098 72479 112013 144958 217437 224026 336039 434874 672078 1232143 2464286 3696429 4089259 7392858 8178518 12267777 24535554 44981849 69517403 89963698 134945547 139034806 208552209 269891094 417104418 494800339 764691433 989600678 1484401017 1529382866 2294074299 2449466141 2968802034 4588148598 4898932282 7348398423 8411605763 14696796846 16823211526 25234817289 26944127551 41640924397 50469634578 53888255102 80832382653 83281848794 124922773191 161664765306 249845546382 296385403061 458050168367 592770806122 889156209183 916100336734 1374150505101 1778312418366 2748301010202 5038551852037 10077103704074 15115655556111 30231311112222