20100002012120 has 64 divisors (see below), whose sum is σ = 45262283673600. Its totient is φ = 8033374926720.

The previous prime is 20100002012107. The next prime is 20100002012159. The reversal of 20100002012120 is 2121020000102.

It is a happy number.

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, 546310925 + ... + 546347715.

It is an arithmetic number, because the mean of its divisors is an integer number (707223182400).

Almost surely, 2^{20100002012120} is an apocalyptic number.

20100002012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100002012120 is an abundant number, since it is smaller than the sum of its proper divisors (25162281661480).

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

20100002012120 is a wasteful number, since it uses less digits than its factorization.

20100002012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47688 (or 47684 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20100002012120 its reverse (2121020000102), we get a palindrome (22221022012222).

The spelling of 20100002012120 in words is "twenty trillion, one hundred billion, two million, twelve thousand, one hundred twenty".