12220212120 has 64 divisors (see below), whose sum is σ = 37352365920. Its totient is φ = 3197236224.

The previous prime is 12220212089. The next prime is 12220212127. The reversal of 12220212120 is 2121202221.

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 12220212120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220212127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 954349 + ... + 967068.

Almost surely, 2^12220212120 is an apocalyptic number.

12220212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220212120 is an abundant number, since it is smaller than the sum of its proper divisors (25132153800).

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

12220212120 is a wasteful number, since it uses less digits than its factorization.

12220212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921484 (or 1921480 counting only the distinct ones).

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

Adding to 12220212120 its reverse (2121202221), we get a palindrome (14341414341).

The spelling of 12220212120 in words is "twelve billion, two hundred twenty million, two hundred twelve thousand, one hundred twenty".