122731756412 has 12 divisors (see below), whose sum is σ = 215798492616. Its totient is φ = 61075044240.

The previous prime is 122731756409. The next prime is 122731756501. The reversal of 122731756412 is 214657137221.

It is a super-2 number, since 2×122731756412² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122731756412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72707543 + ... + 72709230.

It is an arithmetic number, because the mean of its divisors is an integer number (17983207718).

Almost surely, 2^122731756412 is an apocalyptic number.

It is an amenable number.

122731756412 is a deficient number, since it is larger than the sum of its proper divisors (93066736204).

122731756412 is a wasteful number, since it uses less digits than its factorization.

122731756412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145416988 (or 145416986 counting only the distinct ones).

The product of its digits is 141120, while the sum is 41.

The spelling of 122731756412 in words is "one hundred twenty-two billion, seven hundred thirty-one million, seven hundred fifty-six thousand, four hundred twelve".