22203120100 has 54 divisors (see below), whose sum is σ = 56047031250. Its totient is φ = 7612496640.

The previous prime is 22203120077. The next prime is 22203120101. The reversal of 22203120100 is 102130222.

It can be written as a sum of positive squares in 3 ways, for example, as 197177764 + 22005942336 = 14042^2 + 148344^2 .

It is not an unprimeable number, because it can be changed into a prime (22203120101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2260725 + ... + 2270524.

Almost surely, 2^22203120100 is an apocalyptic number.

22203120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22203120100 is an abundant number, since it is smaller than the sum of its proper divisors (33843911150).

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

22203120100 is a wasteful number, since it uses less digits than its factorization.

22203120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531277 (or 4531263 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22203120100 its reverse (102130222), we get a palindrome (22305250322).

The spelling of 22203120100 in words is "twenty-two billion, two hundred three million, one hundred twenty thousand, one hundred".