2120112020100 has 72 divisors (see below), whose sum is σ = 6276846415840. Its totient is φ = 552215220480.

The previous prime is 2120112020093. The next prime is 2120112020101. The reversal of 2120112020100 is 10202110212.

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

It is not an unprimeable number, because it can be changed into a prime (2120112020101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82161985 + ... + 82187784.

Almost surely, 2^{2120112020100} is an apocalyptic number.

2120112020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120112020100 is an abundant number, since it is smaller than the sum of its proper divisors (4156734395740).

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

2120112020100 is a wasteful number, since it uses less digits than its factorization.

2120112020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164349829 (or 164349822 counting only the distinct ones).

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

Adding to 2120112020100 its reverse (10202110212), we get a palindrome (2130314130312).

The spelling of 2120112020100 in words is "two trillion, one hundred twenty billion, one hundred twelve million, twenty thousand, one hundred".