12102222120 has 64 divisors (see below), whose sum is σ = 36318179520. Its totient is φ = 3226235904.

The previous prime is 12102222107. The next prime is 12102222137. The reversal of 12102222120 is 2122220121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12102222120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411424 + ... + 439856.

It is an arithmetic number, because the mean of its divisors is an integer number (567471555).

Almost surely, 2^12102222120 is an apocalyptic number.

12102222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102222120 is an abundant number, since it is smaller than the sum of its proper divisors (24215957400).

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

12102222120 is a wasteful number, since it uses less digits than its factorization.

12102222120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31994 (or 31990 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12102222120 its reverse (2122220121), we get a palindrome (14224442241).

The spelling of 12102222120 in words is "twelve billion, one hundred two million, two hundred twenty-two thousand, one hundred twenty".