222025399 has 2 divisors, whose sum is σ = 222025400. Its totient is φ = 222025398.

The previous prime is 222025387. The next prime is 222025403. The reversal of 222025399 is 993520222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222025399 - 2⁵ = 222025367 is a prime.

It is a super-2 number, since 2×222025399² = 98590555602218402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222025499) 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, 111012699 + 111012700.

It is an arithmetic number, because the mean of its divisors is an integer number (111012700).

Almost surely, 2^222025399 is an apocalyptic number.

222025399 is a deficient number, since it is larger than the sum of its proper divisors (1).

222025399 is an equidigital number, since it uses as much as digits as its factorization.

222025399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 222025399 is about 14900.5167360062. The cubic root of 222025399 is about 605.5279856907.

The spelling of 222025399 in words is "two hundred twenty-two million, twenty-five thousand, three hundred ninety-nine".