2120121100112 has 20 divisors (see below), whose sum is σ = 4114244531616. Its totient is φ = 1058380575840.

The previous prime is 2120121100081. The next prime is 2120121100169. The reversal of 2120121100112 is 2110011210212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104987978 + ... + 105008169.

Almost surely, 2^{2120121100112} is an apocalyptic number.

It is an amenable number.

2120121100112 is a deficient number, since it is larger than the sum of its proper divisors (1994123431504).

2120121100112 is a wasteful number, since it uses less digits than its factorization.

2120121100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209996786 (or 209996780 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2120121100112 its reverse (2110011210212), we get a palindrome (4230132310324).

The spelling of 2120121100112 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, one hundred thousand, one hundred twelve".