2100120220112 has 80 divisors (see below), whose sum is σ = 4522692672000. Its totient is φ = 940200898560.

The previous prime is 2100120220087. The next prime is 2100120220157. The reversal of 2100120220112 is 2110220210012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1613237 + ... + 2608212.

It is an arithmetic number, because the mean of its divisors is an integer number (56533658400).

Almost surely, 2^{2100120220112} is an apocalyptic number.

It is an amenable number.

2100120220112 is an abundant number, since it is smaller than the sum of its proper divisors (2422572451888).

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

2100120220112 is a wasteful number, since it uses less digits than its factorization.

2100120220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4221564 (or 4221558 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2100120220112 its reverse (2110220210012), we get a palindrome (4210340430124).

It can be divided in two parts, 2100120 and 220112, that added together give a palindrome (2320232).

The spelling of 2100120220112 in words is "two trillion, one hundred billion, one hundred twenty million, two hundred twenty thousand, one hundred twelve".