122157292 has 6 divisors (see below), whose sum is σ = 213775268. Its totient is φ = 61078644.

The previous prime is 122157271. The next prime is 122157311. The reversal of 122157292 is 292751221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15269658 + ... + 15269665.

Almost surely, 2^122157292 is an apocalyptic number.

It is an amenable number.

122157292 is a deficient number, since it is larger than the sum of its proper divisors (91617976).

122157292 is a wasteful number, since it uses less digits than its factorization.

122157292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30539327 (or 30539325 counting only the distinct ones).

The product of its digits is 5040, while the sum is 31.

The square root of 122157292 is about 11052.4789979443. The cubic root of 122157292 is about 496.1806216524.

The spelling of 122157292 in words is "one hundred twenty-two million, one hundred fifty-seven thousand, two hundred ninety-two".