122457066272 has 18 divisors (see below), whose sum is σ = 241091246529. Its totient is φ = 61227543360.

The previous prime is 122457066257. The next prime is 122457066283. The reversal of 122457066272 is 272660754221.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 121351902736 + 1105163536 = 348356^2 + 33244^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247444.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1948622 + ... + 2010482.

Almost surely, 2^122457066272 is an apocalyptic number.

It is an amenable number.

122457066272 is a deficient number, since it is larger than the sum of its proper divisors (118634180257).

122457066272 is an frugal number, since it uses more digits than its factorization.

122457066272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123732 (or 61863 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 122457066272 in words is "one hundred twenty-two billion, four hundred fifty-seven million, sixty-six thousand, two hundred seventy-two".