22010121100 has 72 divisors (see below), whose sum is σ = 52987233600. Its totient is φ = 7868001600.

The previous prime is 22010121019. The next prime is 22010121109. The reversal of 22010121100 is 112101022.

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

It is not an unprimeable number, because it can be changed into a prime (22010121109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104670 + ... + 234469.

It is an arithmetic number, because the mean of its divisors is an integer number (735933800).

Almost surely, 2^22010121100 is an apocalyptic number.

22010121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22010121100 is an abundant number, since it is smaller than the sum of its proper divisors (30977112500).

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

22010121100 is a wasteful number, since it uses less digits than its factorization.

22010121100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339223 (or 339216 counting only the distinct ones).

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

Adding to 22010121100 its reverse (112101022), we get a palindrome (22122222122).

The spelling of 22010121100 in words is "twenty-two billion, ten million, one hundred twenty-one thousand, one hundred".