210021210102002 has 24 divisors (see below), whose sum is σ = 344506641431940. Its totient is φ = 95973134836800.

The previous prime is 210021210102001. The next prime is 210021210102007. The reversal of 210021210102002 is 200201012120012.

It can be written as a sum of positive squares in 6 ways, for example, as 156312231195121 + 53708978906881 = 12502489^2 + 7328641^2 .

It is not an unprimeable number, because it can be changed into a prime (210021210102001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3076027877 + ... + 3076096152.

Almost surely, 2^{210021210102002} is an apocalyptic number.

210021210102002 is a deficient number, since it is larger than the sum of its proper divisors (134485431329938).

210021210102002 is a wasteful number, since it uses less digits than its factorization.

210021210102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6152124158 (or 6152124145 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210021210102002 its reverse (200201012120012), we get a palindrome (410222222222014).

The spelling of 210021210102002 in words is "two hundred ten trillion, twenty-one billion, two hundred ten million, one hundred two thousand, two".