20872222994 has 16 divisors (see below), whose sum is σ = 36097602048. Its totient is φ = 8866076352.

The previous prime is 20872222981. The next prime is 20872223077. The reversal of 20872222994 is 49922227802.

It is a super-2 number, since 2×20872222994² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6595202 + ... + 6598365.

It is an arithmetic number, because the mean of its divisors is an integer number (2256100128).

Almost surely, 2^20872222994 is an apocalyptic number.

20872222994 is a deficient number, since it is larger than the sum of its proper divisors (15225379054).

20872222994 is a wasteful number, since it uses less digits than its factorization.

20872222994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13193689.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 20872222994 in words is "twenty billion, eight hundred seventy-two million, two hundred twenty-two thousand, nine hundred ninety-four".