2100111212102 has 24 divisors (see below), whose sum is σ = 3326305235616. Its totient is φ = 994306611024.

The previous prime is 2100111212027. The next prime is 2100111212119. The reversal of 2100111212102 is 2012121110012.

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 11 ways as a sum of consecutive naturals, for example, 784508 + ... + 2194464.

It is an arithmetic number, because the mean of its divisors is an integer number (138596051484).

Almost surely, 2^{2100111212102} is an apocalyptic number.

2100111212102 is a deficient number, since it is larger than the sum of its proper divisors (1226194023514).

2100111212102 is a wasteful number, since it uses less digits than its factorization.

2100111212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412060 (or 1412041 counting only the distinct ones).

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

Adding to 2100111212102 its reverse (2012121110012), we get a palindrome (4112232322114).

The spelling of 2100111212102 in words is "two trillion, one hundred billion, one hundred eleven million, two hundred twelve thousand, one hundred two".