2100111112102 has 16 divisors (see below), whose sum is σ = 3168637984512. Its totient is φ = 1043914848840.

The previous prime is 2100111112087. The next prime is 2100111112109. The reversal of 2100111112102 is 2012111110012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100111112109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3843024 + ... + 4355347.

It is an arithmetic number, because the mean of its divisors is an integer number (198039874032).

Almost surely, 2^{2100111112102} is an apocalyptic number.

2100111112102 is a deficient number, since it is larger than the sum of its proper divisors (1068526872410).

2100111112102 is a wasteful number, since it uses less digits than its factorization.

2100111112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8199123.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2100111112102 its reverse (2012111110012), we get a palindrome (4112222222114).

The spelling of 2100111112102 in words is "two trillion, one hundred billion, one hundred eleven million, one hundred twelve thousand, one hundred two".