222321439 has 2 divisors, whose sum is σ = 222321440. Its totient is φ = 222321438.

The previous prime is 222321431. The next prime is 222321443. The reversal of 222321439 is 934123222.

222321439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222321439 - 2³ = 222321431 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222321431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111160719 + 111160720.

It is an arithmetic number, because the mean of its divisors is an integer number (111160720).

Almost surely, 2^222321439 is an apocalyptic number.

222321439 is a deficient number, since it is larger than the sum of its proper divisors (1).

222321439 is an equidigital number, since it uses as much as digits as its factorization.

222321439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 222321439 is about 14910.4473105269. The cubic root of 222321439 is about 605.7969952900.

The spelling of 222321439 in words is "two hundred twenty-two million, three hundred twenty-one thousand, four hundred thirty-nine".