22340431143221 has 4 divisors (see below), whose sum is σ = 22340462074944. Its totient is φ = 22340400211500.

The previous prime is 22340431143193. The next prime is 22340431143241. The reversal of 22340431143221 is 12234113404322.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22340431143221 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 (22340431143241) 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, 14355935 + ... + 15835836.

It is an arithmetic number, because the mean of its divisors is an integer number (5585115518736).

Almost surely, 2^{22340431143221} is an apocalyptic number.

It is an amenable number.

22340431143221 is a deficient number, since it is larger than the sum of its proper divisors (30931723).

22340431143221 is an equidigital number, since it uses as much as digits as its factorization.

22340431143221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30931722.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 22340431143221 its reverse (12234113404322), we get a palindrome (34574544547543).

The spelling of 22340431143221 in words is "twenty-two trillion, three hundred forty billion, four hundred thirty-one million, one hundred forty-three thousand, two hundred twenty-one".