22212020999997 has 12 divisors (see below), whose sum is σ = 32689389396924. Its totient is φ = 14528617509120.

The previous prime is 22212020999957. The next prime is 22212020999999. The reversal of 22212020999997 is 79999902021222.

It can be written as a sum of positive squares in 2 ways, for example, as 5834224791396 + 16377796208601 = 2415414^2 + 4046949^2 .

It is not a de Polignac number, because 22212020999997 - 2⁶ = 22212020999933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212020999999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23283040404 + ... + 23283041357.

It is an arithmetic number, because the mean of its divisors is an integer number (2724115783077).

Almost surely, 2^{22212020999997} is an apocalyptic number.

It is an amenable number.

22212020999997 is a deficient number, since it is larger than the sum of its proper divisors (10477368396927).

22212020999997 is a wasteful number, since it uses less digits than its factorization.

22212020999997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46566081820 (or 46566081817 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 63.

The spelling of 22212020999997 in words is "twenty-two trillion, two hundred twelve billion, twenty million, nine hundred ninety-nine thousand, nine hundred ninety-seven".