21202112202022 has 32 divisors (see below), whose sum is σ = 32206164019200. Its totient is φ = 10467073064448.

The previous prime is 21202112202001. The next prime is 21202112202031. The reversal of 21202112202022 is 22020221120212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367189938 + ... + 367247674.

It is an arithmetic number, because the mean of its divisors is an integer number (1006442625600).

Almost surely, 2^{21202112202022} is an apocalyptic number.

21202112202022 is a deficient number, since it is larger than the sum of its proper divisors (11004051817178).

21202112202022 is a wasteful number, since it uses less digits than its factorization.

21202112202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60720.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21202112202022 its reverse (22020221120212), we get a palindrome (43222333322234).

The spelling of 21202112202022 in words is "twenty-one trillion, two hundred two billion, one hundred twelve million, two hundred two thousand, twenty-two".