122687112 has 16 divisors (see below), whose sum is σ = 306717840. Its totient is φ = 40895696.

The previous prime is 122687093. The next prime is 122687143. The reversal of 122687112 is 211786221.

It is a self number, because there is not a number n which added to its sum of digits gives 122687112.

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, 2555958 + ... + 2556005.

It is an arithmetic number, because the mean of its divisors is an integer number (19169865).

Almost surely, 2^122687112 is an apocalyptic number.

122687112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122687112 is an abundant number, since it is smaller than the sum of its proper divisors (184030728).

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

122687112 is a wasteful number, since it uses less digits than its factorization.

122687112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5111972 (or 5111968 counting only the distinct ones).

The product of its digits is 2688, while the sum is 30.

The square root of 122687112 is about 11076.4214437696. The cubic root of 122687112 is about 496.8969310996.

The spelling of 122687112 in words is "one hundred twenty-two million, six hundred eighty-seven thousand, one hundred twelve".