100221002001100 has 18 divisors (see below), whose sum is σ = 217479574342604. Its totient is φ = 40088400800400.

The previous prime is 100221002001049. The next prime is 100221002001137. The reversal of 100221002001100 is 1100200122001.

It is a Harshad number since it is a multiple of its sum of digits (10).

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, 501105009906 + ... + 501105010105.

Almost surely, 2^{100221002001100} is an apocalyptic number.

100221002001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100221002001100 is an abundant number, since it is smaller than the sum of its proper divisors (117258572341504).

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

100221002001100 is a wasteful number, since it uses less digits than its factorization.

100221002001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002210020025 (or 1002210020018 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100221002001100 its reverse (1100200122001), we get a palindrome (101321202123101).

The spelling of 100221002001100 in words is "one hundred trillion, two hundred twenty-one billion, two million, one thousand, one hundred".