21022101020002 has 16 divisors (see below), whose sum is σ = 32977441353600. Its totient is φ = 10031656214272.

The previous prime is 21022101019993. The next prime is 21022101020051. The reversal of 21022101020002 is 20002010122012.

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, 508890478 + ... + 508931785.

It is an arithmetic number, because the mean of its divisors is an integer number (2061090084600).

Almost surely, 2^{21022101020002} is an apocalyptic number.

21022101020002 is a deficient number, since it is larger than the sum of its proper divisors (11955340333598).

21022101020002 is a wasteful number, since it uses less digits than its factorization.

21022101020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017822737.

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

Adding to 21022101020002 its reverse (20002010122012), we get a palindrome (41024111142014).

The spelling of 21022101020002 in words is "twenty-one trillion, twenty-two billion, one hundred one million, twenty thousand, two".