12002112220 has 24 divisors (see below), whose sum is σ = 28805069664. Its totient is φ = 4115009856.

The previous prime is 12002112203. The next prime is 12002112247. The reversal of 12002112220 is 2221120021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12002112220.

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, 42864547 + ... + 42864826.

It is an arithmetic number, because the mean of its divisors is an integer number (1200211236).

Almost surely, 2^12002112220 is an apocalyptic number.

12002112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002112220 is an abundant number, since it is smaller than the sum of its proper divisors (16802957444).

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

12002112220 is a wasteful number, since it uses less digits than its factorization.

12002112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85729389 (or 85729387 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12002112220 its reverse (2221120021), we get a palindrome (14223232241).

The spelling of 12002112220 in words is "twelve billion, two million, one hundred twelve thousand, two hundred twenty".