21210102000202 has 16 divisors (see below), whose sum is σ = 31951529645760. Its totient is φ = 10559665857312.

The previous prime is 21210102000169. The next prime is 21210102000223. The reversal of 21210102000202 is 20200020101212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17858848 + ... + 19009435.

It is an arithmetic number, because the mean of its divisors is an integer number (1996970602860).

Almost surely, 2^{21210102000202} is an apocalyptic number.

21210102000202 is a deficient number, since it is larger than the sum of its proper divisors (10741427645558).

21210102000202 is a wasteful number, since it uses less digits than its factorization.

21210102000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36869517.

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

Adding to 21210102000202 its reverse (20200020101212), we get a palindrome (41410122101414).

The spelling of 21210102000202 in words is "twenty-one trillion, two hundred ten billion, one hundred two million, two hundred two", and thus it is an aban number.