2100012020102 has 16 divisors (see below), whose sum is σ = 3164748702192. Its totient is φ = 1045100359680.

The previous prime is 2100012020089. The next prime is 2100012020137. The reversal of 2100012020102 is 2010202100012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223163 + ... + 2061510.

It is an arithmetic number, because the mean of its divisors is an integer number (197796793887).

Almost surely, 2^{2100012020102} is an apocalyptic number.

2100012020102 is a deficient number, since it is larger than the sum of its proper divisors (1064736682090).

2100012020102 is a wasteful number, since it uses less digits than its factorization.

2100012020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2286823.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2100012020102 its reverse (2010202100012), we get a palindrome (4110214120114).

The spelling of 2100012020102 in words is "two trillion, one hundred billion, twelve million, twenty thousand, one hundred two".