20220161220900 has 108 divisors (see below), whose sum is σ = 63393255864484. Its totient is φ = 5390827776000.

The previous prime is 20220161220893. The next prime is 20220161220929. The reversal of 20220161220900 is 902216102202.

It is a happy number.

20220161220900 is a `hidden beast` number, since 2 + 0 + 2 + 20 + 1 + 612 + 20 + 9 + 0 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 5666180379876 + 14553980841024 = 2380374^2 + 3814968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1467420 + ... + 6526380.

Almost surely, 2^{20220161220900} is an apocalyptic number.

20220161220900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20220161220900 is an abundant number, since it is smaller than the sum of its proper divisors (43173094643584).

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

20220161220900 is a wasteful number, since it uses less digits than its factorization.

20220161220900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5063422 (or 5063412 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The spelling of 20220161220900 in words is "twenty trillion, two hundred twenty billion, one hundred sixty-one million, two hundred twenty thousand, nine hundred".