21020022102202 has 16 divisors (see below), whose sum is σ = 31583755872000. Its totient is φ = 10492104684880.

The previous prime is 21020022102199. The next prime is 21020022102203. The reversal of 21020022102202 is 20220122002012.

It is not an unprimeable number, because it can be changed into a prime (21020022102203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36457824 + ... + 37029892.

It is an arithmetic number, because the mean of its divisors is an integer number (1973984742000).

Almost surely, 2^{21020022102202} is an apocalyptic number.

21020022102202 is a deficient number, since it is larger than the sum of its proper divisors (10563733769798).

21020022102202 is a wasteful number, since it uses less digits than its factorization.

21020022102202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603341.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21020022102202 its reverse (20220122002012), we get a palindrome (41240144104214).

The spelling of 21020022102202 in words is "twenty-one trillion, twenty billion, twenty-two million, one hundred two thousand, two hundred two".