220012111109 has 32 divisors (see below), whose sum is σ = 266499486720. Its totient is φ = 177633211392.

The previous prime is 220012111087. The next prime is 220012111153. The reversal of 220012111109 is 901111210022.

It is not a de Polignac number, because 220012111109 - 2⁸ = 220012110853 is a prime.

It is a super-2 number, since 2×220012111109² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220012111169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2949497 + ... + 3023169.

It is an arithmetic number, because the mean of its divisors is an integer number (8328108960).

Almost surely, 2^220012111109 is an apocalyptic number.

220012111109 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

220012111109 is a deficient number, since it is larger than the sum of its proper divisors (46487375611).

220012111109 is a wasteful number, since it uses less digits than its factorization.

220012111109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74069.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 220012111109 in words is "two hundred twenty billion, twelve million, one hundred eleven thousand, one hundred nine".