220989243100 has 36 divisors (see below), whose sum is σ = 479936483488. Its totient is φ = 88323840000.

The previous prime is 220989243077. The next prime is 220989243157. The reversal of 220989243100 is 1342989022.

It is a super-2 number, since 2×220989243100² (a number of 23 digits) contains 22 as substring.

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, 774501 + ... + 1020700.

Almost surely, 2^220989243100 is an apocalyptic number.

220989243100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220989243100 is an abundant number, since it is smaller than the sum of its proper divisors (258947240388).

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

220989243100 is a wasteful number, since it uses less digits than its factorization.

220989243100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1796446 (or 1796439 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The spelling of 220989243100 in words is "two hundred twenty billion, nine hundred eighty-nine million, two hundred forty-three thousand, one hundred".