20112100200120 has 96 divisors (see below), whose sum is σ = 63679032072720. Its totient is φ = 5080951618560.

The previous prime is 20112100200119. The next prime is 20112100200149. The reversal of 20112100200120 is 2100200121102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20112100200096 and 20112100200105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 232090801 + ... + 232177440.

Almost surely, 2^{20112100200120} is an apocalyptic number.

20112100200120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112100200120 is an abundant number, since it is smaller than the sum of its proper divisors (43566931872600).

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

20112100200120 is a wasteful number, since it uses less digits than its factorization.

20112100200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464268293 (or 464268270 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20112100200120 its reverse (2100200121102), we get a palindrome (22212300321222).

The spelling of 20112100200120 in words is "twenty trillion, one hundred twelve billion, one hundred million, two hundred thousand, one hundred twenty".