12020111110 has 96 divisors (see below), whose sum is σ = 26134436160. Its totient is φ = 3964117248.

The previous prime is 12020111107. The next prime is 12020111149. The reversal of 12020111110 is 1111102021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4162087 + ... + 4164973.

It is an arithmetic number, because the mean of its divisors is an integer number (272233710).

Almost surely, 2^12020111110 is an apocalyptic number.

12020111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12020111110 is an abundant number, since it is smaller than the sum of its proper divisors (14114325050).

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

12020111110 is a wasteful number, since it uses less digits than its factorization.

12020111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230 (or 3223 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 12020111110 its reverse (1111102021), we get a palindrome (13131213131).

The spelling of 12020111110 in words is "twelve billion, twenty million, one hundred eleven thousand, one hundred ten".