12120102200220 has 96 divisors (see below), whose sum is σ = 38785521600000. Its totient is φ = 2770223748864.

The previous prime is 12120102200207. The next prime is 12120102200287. The reversal of 12120102200220 is 2200220102121.

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 12120102200220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13747051 + ... + 14602109.

It is an arithmetic number, because the mean of its divisors is an integer number (404015850000).

Almost surely, 2^{12120102200220} is an apocalyptic number.

12120102200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120102200220 is an abundant number, since it is smaller than the sum of its proper divisors (26665419399780).

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

12120102200220 is a wasteful number, since it uses less digits than its factorization.

12120102200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888827 (or 888825 counting only the distinct ones).

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

Adding to 12120102200220 its reverse (2200220102121), we get a palindrome (14320322302341).

The spelling of 12120102200220 in words is "twelve trillion, one hundred twenty billion, one hundred two million, two hundred thousand, two hundred twenty".