109389788220 has 24 divisors (see below), whose sum is σ = 306291407184. Its totient is φ = 29170610176.

The previous prime is 109389788173. The next prime is 109389788239. The reversal of 109389788220 is 22887983901.

It is a super-2 number, since 2×109389788220² (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 7 ways as a sum of consecutive naturals, for example, 911581509 + ... + 911581628.

It is an arithmetic number, because the mean of its divisors is an integer number (12762141966).

Almost surely, 2^109389788220 is an apocalyptic number.

109389788220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109389788220 is an abundant number, since it is smaller than the sum of its proper divisors (196901618964).

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

109389788220 is a wasteful number, since it uses less digits than its factorization.

109389788220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823163149 (or 1823163147 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 57.

The spelling of 109389788220 in words is "one hundred nine billion, three hundred eighty-nine million, seven hundred eighty-eight thousand, two hundred twenty".