100020122021100 has 72 divisors (see below), whose sum is σ = 289632512919568. Its totient is φ = 26649824256000.

The previous prime is 100020122021087. The next prime is 100020122021117. The reversal of 100020122021100 is 1120221020001.

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, 138440869 + ... + 139161468.

Almost surely, 2^{100020122021100} is an apocalyptic number.

100020122021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100020122021100 is an abundant number, since it is smaller than the sum of its proper divisors (189612390898468).

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

100020122021100 is a wasteful number, since it uses less digits than its factorization.

100020122021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277603555 (or 277603548 counting only the distinct ones).

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

Adding to 100020122021100 its reverse (1120221020001), we get a palindrome (101140343041101).

The spelling of 100020122021100 in words is "one hundred trillion, twenty billion, one hundred twenty-two million, twenty-one thousand, one hundred".