2120211200920 has 16 divisors (see below), whose sum is σ = 4770475202160. Its totient is φ = 848084480352.

The previous prime is 2120211200911. The next prime is 2120211200927. The reversal of 2120211200920 is 290021120212.

It is a junction number, because it is equal to n+sod(n) for n = 2120211200891 and 2120211200900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120211200927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26502639972 + ... + 26502640051.

It is an arithmetic number, because the mean of its divisors is an integer number (298154700135).

Almost surely, 2^{2120211200920} is an apocalyptic number.

2120211200920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120211200920 is an abundant number, since it is smaller than the sum of its proper divisors (2650264001240).

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

2120211200920 is a wasteful number, since it uses less digits than its factorization.

2120211200920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53005280034 (or 53005280030 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 2120211200920 in words is "two trillion, one hundred twenty billion, two hundred eleven million, two hundred thousand, nine hundred twenty".