122615551472 has 20 divisors (see below), whose sum is σ = 237631386600. Its totient is φ = 61291322688.

The previous prime is 122615551343. The next prime is 122615551477. The reversal of 122615551472 is 274155516221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122615551477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966722 + ... + 1086177.

It is an arithmetic number, because the mean of its divisors is an integer number (11881569330).

Almost surely, 2^122615551472 is an apocalyptic number.

It is an amenable number.

122615551472 is a deficient number, since it is larger than the sum of its proper divisors (115015835128).

122615551472 is a wasteful number, since it uses less digits than its factorization.

122615551472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056640 (or 2056634 counting only the distinct ones).

The product of its digits is 168000, while the sum is 41.

The spelling of 122615551472 in words is "one hundred twenty-two billion, six hundred fifteen million, five hundred fifty-one thousand, four hundred seventy-two".