12220000212120 has 64 divisors (see below), whose sum is σ = 36660462300000. Its totient is φ = 3258625686528.

The previous prime is 12220000212109. The next prime is 12220000212139. The reversal of 12220000212120 is 2121200002221.

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 12220000212120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9607206 + ... + 10804554.

Almost surely, 2^{12220000212120} is an apocalyptic number.

12220000212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220000212120 is an abundant number, since it is smaller than the sum of its proper divisors (24440462087880).

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

12220000212120 is a wasteful number, since it uses less digits than its factorization.

12220000212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282412 (or 1282408 counting only the distinct ones).

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

Adding to 12220000212120 its reverse (2121200002221), we get a palindrome (14341200214341).

The spelling of 12220000212120 in words is "twelve trillion, two hundred twenty billion, two hundred twelve thousand, one hundred twenty".