22250250304021 has 4 divisors (see below), whose sum is σ = 22250411725932. Its totient is φ = 22250088882112.

The previous prime is 22250250304019. The next prime is 22250250304049. The reversal of 22250250304021 is 12040305205222.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4898143580625 + 17352106723396 = 2213175^2 + 4165586^2 .

It is a cyclic number.

It is not a de Polignac number, because 22250250304021 - 2¹ = 22250250304019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22250250304001) 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, 80504020 + ... + 80779933.

It is an arithmetic number, because the mean of its divisors is an integer number (5562602931483).

Almost surely, 2^{22250250304021} is an apocalyptic number.

It is an amenable number.

22250250304021 is a deficient number, since it is larger than the sum of its proper divisors (161421911).

22250250304021 is a wasteful number, since it uses less digits than its factorization.

22250250304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161421910.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 22250250304021 its reverse (12040305205222), we get a palindrome (34290555509243).

The spelling of 22250250304021 in words is "twenty-two trillion, two hundred fifty billion, two hundred fifty million, three hundred four thousand, twenty-one".