10221120100 has 36 divisors (see below), whose sum is σ = 22188229168. Its totient is φ = 4086900000.

The previous prime is 10221120079. The next prime is 10221120163. The reversal of 10221120100 is 102112201.

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 11 ways as a sum of consecutive naturals, for example, 267175 + ... + 303025.

Almost surely, 2^10221120100 is an apocalyptic number.

10221120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221120100 is an abundant number, since it is smaller than the sum of its proper divisors (11967109068).

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

10221120100 is a wasteful number, since it uses less digits than its factorization.

10221120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38716 (or 38709 counting only the distinct ones).

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

Adding to 10221120100 its reverse (102112201), we get a palindrome (10323232301).

It can be divided in two parts, 10221 and 120100, that added together give a 4-th power (130321 = 19⁴).

The spelling of 10221120100 in words is "ten billion, two hundred twenty-one million, one hundred twenty thousand, one hundred".