2100002002102 has 12 divisors (see below), whose sum is σ = 3292914294180. Its totient is φ = 1004348783108.

The previous prime is 2100002002099. The next prime is 2100002002121. The reversal of 2100002002102 is 2012002000012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 992438452 + ... + 992440567.

It is an arithmetic number, because the mean of its divisors is an integer number (274409524515).

Almost surely, 2^{2100002002102} is an apocalyptic number.

2100002002102 is a deficient number, since it is larger than the sum of its proper divisors (1192912292078).

2100002002102 is a wasteful number, since it uses less digits than its factorization.

2100002002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984879067 (or 1984879044 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 2100002002102 its reverse (2012002000012), we get a palindrome (4112004002114).

The spelling of 2100002002102 in words is "two trillion, one hundred billion, two million, two thousand, one hundred two".