20221102100100 has 72 divisors (see below), whose sum is σ = 63825151366368. Its totient is φ = 4902085356800.

The previous prime is 20221102100093. The next prime is 20221102100113. The reversal of 20221102100100 is 100120112202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3063800049 + ... + 3063806648.

It is an arithmetic number, because the mean of its divisors is an integer number (886460435644).

Almost surely, 2^{20221102100100} is an apocalyptic number.

20221102100100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221102100100 is an abundant number, since it is smaller than the sum of its proper divisors (43604049266268).

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

20221102100100 is a wasteful number, since it uses less digits than its factorization.

20221102100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6127606725 (or 6127606718 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20221102100100 its reverse (100120112202), we get a palindrome (20321222212302).

The spelling of 20221102100100 in words is "twenty trillion, two hundred twenty-one billion, one hundred two million, one hundred thousand, one hundred".