2100122012002 has 24 divisors (see below), whose sum is σ = 3664831565340. Its totient is φ = 899970513120.

The previous prime is 2100122011993. The next prime is 2100122012011. The reversal of 2100122012002 is 2002102210012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2100122011993) and next prime (2100122012011).

It can be written as a sum of positive squares in 2 ways, for example, as 1631416098361 + 468705913641 = 1277269^2 + 684621^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116752 + ... + 2052772.

Almost surely, 2^{2100122012002} is an apocalyptic number.

2100122012002 is a deficient number, since it is larger than the sum of its proper divisors (1564709553338).

2100122012002 is a wasteful number, since it uses less digits than its factorization.

2100122012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947106 (or 1947099 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2100122012002 its reverse (2002102210012), we get a palindrome (4102224222014).

The spelling of 2100122012002 in words is "two trillion, one hundred billion, one hundred twenty-two million, twelve thousand, two".