22220221100 has 108 divisors (see below), whose sum is σ = 61189443000. Its totient is φ = 6925766400.

The previous prime is 22220221073. The next prime is 22220221139. The reversal of 22220221100 is 112202222.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 152225 + ... + 260024.

Almost surely, 2^22220221100 is an apocalyptic number.

22220221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220221100 is an abundant number, since it is smaller than the sum of its proper divisors (38969221900).

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

22220221100 is a wasteful number, since it uses less digits than its factorization.

22220221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412288 (or 412274 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22220221100 its reverse (112202222), we get a palindrome (22332423322).

The spelling of 22220221100 in words is "twenty-two billion, two hundred twenty million, two hundred twenty-one thousand, one hundred".