21202222222022 has 8 divisors (see below), whose sum is σ = 33477192982200. Its totient is φ = 10043157894624.

The previous prime is 21202222221979. The next prime is 21202222222057. The reversal of 21202222222022 is 22022222220212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278976608147 + ... + 278976608222.

It is an arithmetic number, because the mean of its divisors is an integer number (4184649122775).

Almost surely, 2^{21202222222022} is an apocalyptic number.

21202222222022 is a deficient number, since it is larger than the sum of its proper divisors (12274970760178).

21202222222022 is a wasteful number, since it uses less digits than its factorization.

21202222222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557953216390.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 21202222222022 its reverse (22022222220212), we get a palindrome (43224444442234).

The spelling of 21202222222022 in words is "twenty-one trillion, two hundred two billion, two hundred twenty-two million, two hundred twenty-two thousand, twenty-two".