20211012022100 has 18 divisors (see below), whose sum is σ = 43857896088174. Its totient is φ = 8084404808800.

The previous prime is 20211012022099. The next prime is 20211012022111. The reversal of 20211012022100 is 122021011202.

It can be written as a sum of positive squares in 3 ways, for example, as 5325026990404 + 14885985031696 = 2307602^2 + 3858236^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101055060011 + ... + 101055060210.

Almost surely, 2^{20211012022100} is an apocalyptic number.

20211012022100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20211012022100 is an abundant number, since it is smaller than the sum of its proper divisors (23646884066074).

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

20211012022100 is a wasteful number, since it uses less digits than its factorization.

20211012022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202110120235 (or 202110120228 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20211012022100 its reverse (122021011202), we get a palindrome (20333033033302).

The spelling of 20211012022100 in words is "twenty trillion, two hundred eleven billion, twelve million, twenty-two thousand, one hundred".