22022120212021 has 4 divisors (see below), whose sum is σ = 22022951356012. Its totient is φ = 22021289068032.

The previous prime is 22022120212009. The next prime is 22022120212033. The reversal of 22022120212021 is 12021202122022.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (22022120212009) and next prime (22022120212033).

It can be written as a sum of positive squares in 2 ways, for example, as 19828051236900 + 2194068975121 = 4452870^2 + 1481239^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022120212021 - 2⁷ = 22022120211893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22022120212021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022120212091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415532250 + ... + 415585243.

It is an arithmetic number, because the mean of its divisors is an integer number (5505737839003).

Almost surely, 2^{22022120212021} is an apocalyptic number.

It is an amenable number.

22022120212021 is a deficient number, since it is larger than the sum of its proper divisors (831143991).

22022120212021 is an equidigital number, since it uses as much as digits as its factorization.

22022120212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831143990.

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

Adding to 22022120212021 its reverse (12021202122022), we get a palindrome (34043322334043).

The spelling of 22022120212021 in words is "twenty-two trillion, twenty-two billion, one hundred twenty million, two hundred twelve thousand, twenty-one".