20120020120120 has 64 divisors (see below), whose sum is σ = 45317992920480. Its totient is φ = 8039488106496.

The previous prime is 20120020120097. The next prime is 20120020120141. The reversal of 20120020120120 is 2102102002102.

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 20120020120120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163015872 + ... + 163139248.

Almost surely, 2^{20120020120120} is an apocalyptic number.

20120020120120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120020120120 is an abundant number, since it is smaller than the sum of its proper divisors (25197972800360).

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

20120020120120 is a wasteful number, since it uses less digits than its factorization.

20120020120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127672 (or 127668 counting only the distinct ones).

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

Adding to 20120020120120 its reverse (2102102002102), we get a palindrome (22222122122222).

The spelling of 20120020120120 in words is "twenty trillion, one hundred twenty billion, twenty million, one hundred twenty thousand, one hundred twenty".