20212012120 has 32 divisors (see below), whose sum is σ = 45739915920. Its totient is φ = 8038069120.

The previous prime is 20212012103. The next prime is 20212012157. The reversal of 20212012120 is 2121021202.

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 20212012120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1453486 + ... + 1467325.

Almost surely, 2^20212012120 is an apocalyptic number.

20212012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212012120 is an abundant number, since it is smaller than the sum of its proper divisors (25527903800).

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

20212012120 is a wasteful number, since it uses less digits than its factorization.

20212012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920995 (or 2920991 counting only the distinct ones).

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

Adding to 20212012120 its reverse (2121021202), we get a palindrome (22333033322).

The spelling of 20212012120 in words is "twenty billion, two hundred twelve million, twelve thousand, one hundred twenty".