22312213230221 has 4 divisors (see below), whose sum is σ = 22312222819200. Its totient is φ = 22312203641244.

The previous prime is 22312213230193. The next prime is 22312213230271. The reversal of 22312213230221 is 12203231221322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22312213230221 - 2¹⁴ = 22312213213837 is a prime.

It is a super-3 number, since 3×22312213230221³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22312213230271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164950 + ... + 6780968.

It is an arithmetic number, because the mean of its divisors is an integer number (5578055704800).

Almost surely, 2^{22312213230221} is an apocalyptic number.

It is an amenable number.

22312213230221 is a deficient number, since it is larger than the sum of its proper divisors (9588979).

22312213230221 is an equidigital number, since it uses as much as digits as its factorization.

22312213230221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9588978.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 22312213230221 its reverse (12203231221322), we get a palindrome (34515444451543).

The spelling of 22312213230221 in words is "twenty-two trillion, three hundred twelve billion, two hundred thirteen million, two hundred thirty thousand, two hundred twenty-one".