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122331266420 = 225112459226129
BaseRepresentation
bin111000111101110000…
…0101111110101110100
3102200202110212012211012
41301323200233311310
54001013301011140
6132110451331352
711560324415336
oct1617340576564
9380673765735
10122331266420
11479758a1090
121b8605b0b58
13b6c7188a5c
145cc6bd3456
1532ae9a1265
hex1c7b82fd74

122331266420 has 48 divisors (see below), whose sum is σ = 280365019200. Its totient is φ = 44465809920.

The previous prime is 122331266413. The next prime is 122331266443. The reversal of 122331266420 is 24662133221.

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, 427916 + ... + 654044.

It is an arithmetic number, because the mean of its divisors is an integer number (5840937900).

Almost surely, 2122331266420 is an apocalyptic number.

122331266420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122331266420 is an abundant number, since it is smaller than the sum of its proper divisors (158033752780).

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

122331266420 is a wasteful number, since it uses less digits than its factorization.

122331266420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228608 (or 228606 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 122331266420 its reverse (24662133221), we get a palindrome (146993399641).

The spelling of 122331266420 in words is "one hundred twenty-two billion, three hundred thirty-one million, two hundred sixty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 2459 4918 9836 12295 24590 27049 49180 54098 108196 135245 226129 270490 452258 540980 904516 1130645 2261290 2487419 4522580 4974838 9949676 12437095 24874190 49748380 556051211 1112102422 2224204844 2780256055 5560512110 6116563321 11121024220 12233126642 24466253284 30582816605 61165633210 122331266420