122151412 has 6 divisors (see below), whose sum is σ = 213764978. Its totient is φ = 61075704.

The previous prime is 122151397. The next prime is 122151461. The reversal of 122151412 is 214151221.

It can be written as a sum of positive squares in only one way, i.e., 121969936 + 181476 = 11044^2 + 426^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 122151412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15268923 + ... + 15268930.

Almost surely, 2^122151412 is an apocalyptic number.

It is an amenable number.

122151412 is a deficient number, since it is larger than the sum of its proper divisors (91613566).

122151412 is a wasteful number, since it uses less digits than its factorization.

122151412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30537857 (or 30537855 counting only the distinct ones).

The product of its digits is 160, while the sum is 19.

The square root of 122151412 is about 11052.2129910711. The cubic root of 122151412 is about 496.1726603625.

The spelling of 122151412 in words is "one hundred twenty-two million, one hundred fifty-one thousand, four hundred twelve".