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122221310232 = 23371510748157
BaseRepresentation
bin111000111010011110…
…1010011000100011000
3102200110210221212021210
41301310331103010120
54000302123411412
6132051522503120
711554520665350
oct1616475230430
9380423855253
10122221310232
114791981a3aa
121b82b804aa0
13b6aa46a618
145cb636db60
1532a4ed183c
hex1c74f53118

122221310232 has 64 divisors (see below), whose sum is σ = 349234110720. Its totient is φ = 34917337728.

The previous prime is 122221310227. The next prime is 122221310273. The reversal of 122221310232 is 232013122221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 122221310199 and 122221310208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2513898 + ... + 2562054.

It is an arithmetic number, because the mean of its divisors is an integer number (5456782980).

Almost surely, 2122221310232 is an apocalyptic number.

122221310232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122221310232 is an abundant number, since it is smaller than the sum of its proper divisors (227012800488).

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

122221310232 is a wasteful number, since it uses less digits than its factorization.

122221310232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63280 (or 63276 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 122221310232 its reverse (232013122221), we get a palindrome (354234432453).

The spelling of 122221310232 in words is "one hundred twenty-two billion, two hundred twenty-one million, three hundred ten thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 15107 30214 45321 48157 60428 90642 96314 105749 120856 144471 181284 192628 211498 288942 317247 337099 362568 385256 422996 577884 634494 674198 845992 1011297 1155768 1268988 1348396 2022594 2537976 2696792 4045188 8090376 727507799 1455015598 2182523397 2910031196 4365046794 5092554593 5820062392 8730093588 10185109186 15277663779 17460187176 20370218372 30555327558 40740436744 61110655116 122221310232