2101121202112 has 42 divisors (see below), whose sum is σ = 4358572941968. Its totient is φ = 1004884036992.

The previous prime is 2101121202041. The next prime is 2101121202209. The reversal of 2101121202112 is 2112021211012.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30996408 + ... + 31064119.

Almost surely, 2^{2101121202112} is an apocalyptic number.

It is an amenable number.

2101121202112 is an abundant number, since it is smaller than the sum of its proper divisors (2257451739856).

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

2101121202112 is an equidigital number, since it uses as much as digits as its factorization.

2101121202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62060585 (or 62060552 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2101121202112 its reverse (2112021211012), we get a palindrome (4213142413124).

The spelling of 2101121202112 in words is "two trillion, one hundred one billion, one hundred twenty-one million, two hundred two thousand, one hundred twelve".