2100100121002 has 16 divisors (see below), whose sum is σ = 3398410727712. Its totient is φ = 967579464240.

The previous prime is 2100100120949. The next prime is 2100100121033. The reversal of 2100100121002 is 2001210010012.

It is a self number, because there is not a number n which added to its sum of digits gives 2100100121002.

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 7 ways as a sum of consecutive naturals, for example, 70714648 + ... + 70744339.

It is an arithmetic number, because the mean of its divisors is an integer number (212400670482).

Almost surely, 2^{2100100121002} is an apocalyptic number.

2100100121002 is a deficient number, since it is larger than the sum of its proper divisors (1298310606710).

2100100121002 is a wasteful number, since it uses less digits than its factorization.

2100100121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141459573.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2100100121002 its reverse (2001210010012), we get a palindrome (4101310131014).

The spelling of 2100100121002 in words is "two trillion, one hundred billion, one hundred million, one hundred twenty-one thousand, two".