220313122100 has 36 divisors (see below), whose sum is σ = 483008150604. Its totient is φ = 87216737280.

The previous prime is 220313122091. The next prime is 220313122121. The reversal of 220313122100 is 1221313022.

It can be written as a sum of positive squares in 6 ways, for example, as 52300030864 + 168013091236 = 228692^2 + 409894^2 .

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, 11346647 + ... + 11366046.

Almost surely, 2^220313122100 is an apocalyptic number.

220313122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220313122100 is an abundant number, since it is smaller than the sum of its proper divisors (262695028504).

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

220313122100 is a wasteful number, since it uses less digits than its factorization.

220313122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22712804 (or 22712797 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 220313122100 its reverse (1221313022), we get a palindrome (221534435122).

The spelling of 220313122100 in words is "two hundred twenty billion, three hundred thirteen million, one hundred twenty-two thousand, one hundred".