122755712 has 32 divisors (see below), whose sum is σ = 250250880. Its totient is φ = 59947776.

The previous prime is 122755697. The next prime is 122755723. The reversal of 122755712 is 217557221.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 5648 + ... + 16655.

It is an arithmetic number, because the mean of its divisors is an integer number (7820340).

Almost surely, 2^122755712 is an apocalyptic number.

It is an amenable number.

122755712 is an abundant number, since it is smaller than the sum of its proper divisors (127495168).

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

122755712 is an equidigital number, since it uses as much as digits as its factorization.

122755712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22360 (or 22348 counting only the distinct ones).

The product of its digits is 9800, while the sum is 32.

The square root of 122755712 is about 11079.5176790328. The cubic root of 122755712 is about 496.9895264767.

The spelling of 122755712 in words is "one hundred twenty-two million, seven hundred fifty-five thousand, seven hundred twelve".