20201020012120 has 32 divisors (see below), whose sum is σ = 45465420460320. Its totient is φ = 8078074594560.

The previous prime is 20201020012087. The next prime is 20201020012141. The reversal of 20201020012120 is 2121002010202.

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 20201020012120.

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, 72778821 + ... + 73055860.

It is an arithmetic number, because the mean of its divisors is an integer number (1420794389385).

Almost surely, 2^{20201020012120} is an apocalyptic number.

20201020012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201020012120 is an abundant number, since it is smaller than the sum of its proper divisors (25264400448200).

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

20201020012120 is a wasteful number, since it uses less digits than its factorization.

20201020012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145838155 (or 145838151 counting only the distinct ones).

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

Adding to 20201020012120 its reverse (2121002010202), we get a palindrome (22322022022322).

The spelling of 20201020012120 in words is "twenty trillion, two hundred one billion, twenty million, twelve thousand, one hundred twenty".