122621064057 has 40 divisors (see below), whose sum is σ = 185720375456. Its totient is φ = 80617275648.

The previous prime is 122621064029. The next prime is 122621064061. The reversal of 122621064057 is 750460126221.

It is a happy number.

122621064057 is a `hidden beast` number, since 1 + 2 + 2 + 6 + 2 + 1 + 0 + 640 + 5 + 7 = 666.

It is not a de Polignac number, because 122621064057 - 2¹⁴ = 122621047673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122621064157) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2195958 + ... + 2251104.

Almost surely, 2^122621064057 is an apocalyptic number.

It is an amenable number.

122621064057 is a deficient number, since it is larger than the sum of its proper divisors (63099311399).

122621064057 is an equidigital number, since it uses as much as digits as its factorization.

122621064057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55539 (or 55530 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 122621064057 in words is "one hundred twenty-two billion, six hundred twenty-one million, sixty-four thousand, fifty-seven".