2100102120002 has 8 divisors (see below), whose sum is σ = 3150818766396. Its totient is φ = 1049829197872.

The previous prime is 2100102119959. The next prime is 2100102120031. The reversal of 2100102120002 is 2000212010012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1865188386961 + 234913733041 = 1365719^2 + 484679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×2100102120002³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110919233 + ... + 110938164.

Almost surely, 2^{2100102120002} is an apocalyptic number.

2100102120002 is a deficient number, since it is larger than the sum of its proper divisors (1050716646394).

2100102120002 is a wasteful number, since it uses less digits than its factorization.

2100102120002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221862132.

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

Adding to 2100102120002 its reverse (2000212010012), we get a palindrome (4100314130014).

The spelling of 2100102120002 in words is "two trillion, one hundred billion, one hundred two million, one hundred twenty thousand, two".