21000210102202 has 16 divisors (see below), whose sum is σ = 32586667752960. Its totient is φ = 10137990514288.

The previous prime is 21000210102169. The next prime is 21000210102247. The reversal of 21000210102202 is 20220101200012.

It is a happy number.

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, 16972143 + ... + 18167389.

It is an arithmetic number, because the mean of its divisors is an integer number (2036666734560).

Almost surely, 2^{21000210102202} is an apocalyptic number.

21000210102202 is a deficient number, since it is larger than the sum of its proper divisors (11586457650758).

21000210102202 is a wasteful number, since it uses less digits than its factorization.

21000210102202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498205.

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

Adding to 21000210102202 its reverse (20220101200012), we get a palindrome (41220311302214).

The spelling of 21000210102202 in words is "twenty-one trillion, two hundred ten million, one hundred two thousand, two hundred two".