122868312 has 32 divisors (see below), whose sum is σ = 351052800. Its totient is φ = 35105184.

The previous prime is 122868311. The next prime is 122868337. The reversal of 122868312 is 213868221.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122868311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365512 + ... + 365847.

It is an arithmetic number, because the mean of its divisors is an integer number (10970400).

Almost surely, 2^122868312 is an apocalyptic number.

122868312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122868312 is an abundant number, since it is smaller than the sum of its proper divisors (228184488).

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

122868312 is a wasteful number, since it uses less digits than its factorization.

122868312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731375 (or 731371 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 122868312 is about 11084.5979629394. The cubic root of 122868312 is about 497.1414377213.

Subtracting 122868312 from its reverse (213868221), we obtain a palindrome (90999909).

The spelling of 122868312 in words is "one hundred twenty-two million, eight hundred sixty-eight thousand, three hundred twelve".