22344331421 has 2 divisors, whose sum is σ = 22344331422. Its totient is φ = 22344331420.

The previous prime is 22344331397. The next prime is 22344331469. The reversal of 22344331421 is 12413344322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21642823225 + 701508196 = 147115^2 + 26486^2 .

It is a cyclic number.

It is not a de Polignac number, because 22344331421 - 2¹⁰ = 22344330397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22344321421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11172165710 + 11172165711.

It is an arithmetic number, because the mean of its divisors is an integer number (11172165711).

Almost surely, 2^22344331421 is an apocalyptic number.

It is an amenable number.

22344331421 is a deficient number, since it is larger than the sum of its proper divisors (1).

22344331421 is an equidigital number, since it uses as much as digits as its factorization.

22344331421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 29.

Adding to 22344331421 its reverse (12413344322), we get a palindrome (34757675743).

The spelling of 22344331421 in words is "twenty-two billion, three hundred forty-four million, three hundred thirty-one thousand, four hundred twenty-one".