22220202100 has 36 divisors (see below), whose sum is σ = 48231989344. Its totient is φ = 8885472480.

The previous prime is 22220202097. The next prime is 22220202113. The reversal of 22220202100 is 120202222.

It is a congruent number.

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, 329899 + ... + 391501.

Almost surely, 2^22220202100 is an apocalyptic number.

22220202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22220202100 is an abundant number, since it is smaller than the sum of its proper divisors (26011787244).

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

22220202100 is a wasteful number, since it uses less digits than its factorization.

22220202100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65224 (or 65217 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22220202100 its reverse (120202222), we get a palindrome (22340404322).

The spelling of 22220202100 in words is "twenty-two billion, two hundred twenty million, two hundred two thousand, one hundred".