21202002210002 has 64 divisors (see below), whose sum is σ = 34447008153600. Its totient is φ = 9754224520320.

The previous prime is 21202002209977. The next prime is 21202002210019. The reversal of 21202002210002 is 20001220020212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1751212433 + ... + 1751224539.

It is an arithmetic number, because the mean of its divisors is an integer number (538234502400).

Almost surely, 2^{21202002210002} is an apocalyptic number.

21202002210002 is a deficient number, since it is larger than the sum of its proper divisors (13245005943598).

21202002210002 is a wasteful number, since it uses less digits than its factorization.

21202002210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17111.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 21202002210002 its reverse (20001220020212), we get a palindrome (41203222230214).

The spelling of 21202002210002 in words is "twenty-one trillion, two hundred two billion, two million, two hundred ten thousand, two".