22223121100 has 36 divisors (see below), whose sum is σ = 48249540304. Its totient is φ = 8884572480.

The previous prime is 22223121083. The next prime is 22223121133. The reversal of 22223121100 is 112132222.

It is a happy number.

It is a super-2 number, since 2×22223121100² (a number of 21 digits) contains 22 as substring.

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, 135817 + ... + 250783.

Almost surely, 2^22223121100 is an apocalyptic number.

22223121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22223121100 is an abundant number, since it is smaller than the sum of its proper divisors (26026419204).

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

22223121100 is a wasteful number, since it uses less digits than its factorization.

22223121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116914 (or 116907 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22223121100 its reverse (112132222), we get a palindrome (22335253322).

The spelling of 22223121100 in words is "twenty-two billion, two hundred twenty-three million, one hundred twenty-one thousand, one hundred".