2100100042002 has 64 divisors (see below), whose sum is σ = 4431186777600. Its totient is φ = 661702608000.

The previous prime is 2100100041967. The next prime is 2100100042039. The reversal of 2100100042002 is 2002400010012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99989502 + ... + 100010502.

It is an arithmetic number, because the mean of its divisors is an integer number (69237293400).

Almost surely, 2^{2100100042002} is an apocalyptic number.

2100100042002 is an abundant number, since it is smaller than the sum of its proper divisors (2331086735598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2100100042002 is a wasteful number, since it uses less digits than its factorization.

2100100042002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22951.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2100100042002 its reverse (2002400010012), we get a palindrome (4102500052014).

The spelling of 2100100042002 in words is "two trillion, one hundred billion, one hundred million, forty-two thousand, two".