10170067220721 has 40 divisors (see below), whose sum is σ = 15351724057824. Its totient is φ = 6709050944640.

The previous prime is 10170067220701. The next prime is 10170067220723. The reversal of 10170067220721 is 12702276007101.

It is not a de Polignac number, because 10170067220721 - 2⁵ = 10170067220689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10170067220723) 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, 6969666 + ... + 8301588.

Almost surely, 2^{10170067220721} is an apocalyptic number.

It is an amenable number.

10170067220721 is a deficient number, since it is larger than the sum of its proper divisors (5181656837103).

10170067220721 is a wasteful number, since it uses less digits than its factorization.

10170067220721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332923 (or 1332914 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 36.

The spelling of 10170067220721 in words is "ten trillion, one hundred seventy billion, sixty-seven million, two hundred twenty thousand, seven hundred twenty-one".