2102122021112 has 32 divisors (see below), whose sum is σ = 4203354481200. Its totient is φ = 982117092864.

The previous prime is 2102122021081. The next prime is 2102122021159. The reversal of 2102122021112 is 2111202212012.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55581023 + ... + 55618830.

Almost surely, 2^{2102122021112} is an apocalyptic number.

It is an amenable number.

2102122021112 is a deficient number, since it is larger than the sum of its proper divisors (2101232460088).

2102122021112 is a wasteful number, since it uses less digits than its factorization.

2102122021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111200015 (or 111200011 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2102122021112 its reverse (2111202212012), we get a palindrome (4213324233124).

The spelling of 2102122021112 in words is "two trillion, one hundred two billion, one hundred twenty-two million, twenty-one thousand, one hundred twelve".