20012100110102 has 4 divisors (see below), whose sum is σ = 30018150165156. Its totient is φ = 10006050055050.

The previous prime is 20012100110087. The next prime is 20012100110147. The reversal of 20012100110102 is 20101100121002.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5003025027524 + ... + 5003025027527.

It is an arithmetic number, because the mean of its divisors is an integer number (7504537541289).

Almost surely, 2^{20012100110102} is an apocalyptic number.

20012100110102 is a deficient number, since it is larger than the sum of its proper divisors (10006050055054).

20012100110102 is a wasteful number, since it uses less digits than its factorization.

20012100110102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10006050055053.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20012100110102 its reverse (20101100121002), we get a palindrome (40113200231104).

The spelling of 20012100110102 in words is "twenty trillion, twelve billion, one hundred million, one hundred ten thousand, one hundred two".