222329399 has 4 divisors (see below), whose sum is σ = 229995960. Its totient is φ = 214662840.

The previous prime is 222329377. The next prime is 222329407. The reversal of 222329399 is 993923222.

222329399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993923222 = 2 ⋅496961611.

It is a cyclic number.

It is not a de Polignac number, because 222329399 - 2⁸ = 222329143 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 (222329309) 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, 3833237 + ... + 3833294.

It is an arithmetic number, because the mean of its divisors is an integer number (57498990).

Almost surely, 2^222329399 is an apocalyptic number.

222329399 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

222329399 is a deficient number, since it is larger than the sum of its proper divisors (7666561).

222329399 is an equidigital number, since it uses as much as digits as its factorization.

222329399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7666560.

The product of its digits is 104976, while the sum is 41.

The square root of 222329399 is about 14910.7142350727. The cubic root of 222329399 is about 605.8042251918.

The spelling of 222329399 in words is "two hundred twenty-two million, three hundred twenty-nine thousand, three hundred ninety-nine".