22312230989 has 2 divisors, whose sum is σ = 22312230990. Its totient is φ = 22312230988.

The previous prime is 22312230959. The next prime is 22312231099. The reversal of 22312230989 is 98903221322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21768641764 + 543589225 = 147542^2 + 23315^2 .

It is a cyclic number.

It is not a de Polignac number, because 22312230989 - 2²⁸ = 22043795533 is a prime.

It is a super-4 number, since 4×22312230989⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22312230929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11156115494 + 11156115495.

It is an arithmetic number, because the mean of its divisors is an integer number (11156115495).

Almost surely, 2^22312230989 is an apocalyptic number.

It is an amenable number.

22312230989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22312230989 is an equidigital number, since it uses as much as digits as its factorization.

22312230989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 41.

The spelling of 22312230989 in words is "twenty-two billion, three hundred twelve million, two hundred thirty thousand, nine hundred eighty-nine".