20112220000120 has 32 divisors (see below), whose sum is σ = 45253429333920. Its totient is φ = 8044721896320.

The previous prime is 20112220000097. The next prime is 20112220000141. The reversal of 20112220000120 is 2100002221102.

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 20112220000120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3219972 + ... + 7112851.

It is an arithmetic number, because the mean of its divisors is an integer number (1414169666685).

Almost surely, 2^{20112220000120} is an apocalyptic number.

20112220000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112220000120 is an abundant number, since it is smaller than the sum of its proper divisors (25141209333800).

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

20112220000120 is a wasteful number, since it uses less digits than its factorization.

20112220000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10381495 (or 10381491 counting only the distinct ones).

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

Adding to 20112220000120 its reverse (2100002221102), we get a palindrome (22212222221222).

The spelling of 20112220000120 in words is "twenty trillion, one hundred twelve billion, two hundred twenty million, one hundred twenty", and thus it is an aban number.