222312002309 has 4 divisors (see below), whose sum is σ = 222399840480. Its totient is φ = 222224164140.

The previous prime is 222312002299. The next prime is 222312002321. The reversal of 222312002309 is 903200213222.

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 an emirpimes, since its reverse is a distinct semiprime: 903200213222 = 2 ⋅451600106611.

It is a cyclic number.

It is not a de Polignac number, because 222312002309 - 2²⁴ = 222295225093 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 (222312004309) 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, 43915289 + ... + 43920350.

It is an arithmetic number, because the mean of its divisors is an integer number (55599960120).

Almost surely, 2^222312002309 is an apocalyptic number.

It is an amenable number.

222312002309 is a deficient number, since it is larger than the sum of its proper divisors (87838171).

222312002309 is an equidigital number, since it uses as much as digits as its factorization.

222312002309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87838170.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 222312002309 in words is "two hundred twenty-two billion, three hundred twelve million, two thousand, three hundred nine".