22200021220998 has 32 divisors (see below), whose sum is σ = 44427433070592. Its totient is φ = 7395442980800.

The previous prime is 22200021220991. The next prime is 22200021221009. The reversal of 22200021220998 is 89902212000222.

It is a super-2 number, since 2×22200021220998² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22200021220991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90984703 + ... + 91228373.

It is an arithmetic number, because the mean of its divisors is an integer number (1388357283456).

Almost surely, 2^{22200021220998} is an apocalyptic number.

22200021220998 is an abundant number, since it is smaller than the sum of its proper divisors (22227411849594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22200021220998 is a wasteful number, since it uses less digits than its factorization.

22200021220998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252980.

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 22200021220998 in words is "twenty-two trillion, two hundred billion, twenty-one million, two hundred twenty thousand, nine hundred ninety-eight".