20221100332020 has 108 divisors (see below), whose sum is σ = 71351596916964. Its totient is φ = 4621965788160.

The previous prime is 20221100331983. The next prime is 20221100332231. The reversal of 20221100332020 is 2023300112202.

20221100332020 is a `hidden beast` number, since 2 + 0 + 221 + 100 + 3 + 320 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14945754968676 + 5275345363344 = 3865974^2 + 2296812^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20221100331984 and 20221100332002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1146312061 + ... + 1146329700.

Almost surely, 2^{20221100332020} is an apocalyptic number.

20221100332020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221100332020 is an abundant number, since it is smaller than the sum of its proper divisors (51130496584944).

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

20221100332020 is a wasteful number, since it uses less digits than its factorization.

20221100332020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292641790 (or 2292641778 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20221100332020 its reverse (2023300112202), we get a palindrome (22244400444222).

The spelling of 20221100332020 in words is "twenty trillion, two hundred twenty-one billion, one hundred million, three hundred thirty-two thousand, twenty".