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122111230230 = 232511123344677
BaseRepresentation
bin111000110111001100…
…1011000000100010110
3102200012010211012220200
41301232121120010112
54000040433331410
6132032551241330
711552013221403
oct1615631300426
9380163735820
10122111230230
11478726736a0
121b7ba979246
13b690707a22
145ca58b72aa
15329a4da3c0
hex1c6e658116

122111230230 has 48 divisors (see below), whose sum is σ = 346351855824. Its totient is φ = 29602722240.

The previous prime is 122111230211. The next prime is 122111230237. The reversal of 122111230230 is 32032111221.

122111230230 is a `hidden beast` number, since 1 + 221 + 112 + 302 + 30 = 666.

It is a super-2 number, since 2×1221112302302 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111230237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61671349 + ... + 61673328.

It is an arithmetic number, because the mean of its divisors is an integer number (7215663663).

Almost surely, 2122111230230 is an apocalyptic number.

122111230230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122111230230 is an abundant number, since it is smaller than the sum of its proper divisors (224240625594).

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

122111230230 is a wasteful number, since it uses less digits than its factorization.

122111230230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123344701 (or 123344698 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 122111230230 its reverse (32032111221), we get a palindrome (154143341451).

The spelling of 122111230230 in words is "one hundred twenty-two billion, one hundred eleven million, two hundred thirty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 165 198 330 495 990 123344677 246689354 370034031 616723385 740068062 1110102093 1233446770 1356791447 1850170155 2220204186 2713582894 3700340310 4070374341 5550510465 6783957235 8140748682 11101020930 12211123023 13567914470 20351871705 24422246046 40703743410 61055615115 122111230230