222055399 has 2 divisors, whose sum is σ = 222055400. Its totient is φ = 222055398.

The previous prime is 222055369. The next prime is 222055403. The reversal of 222055399 is 993550222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222055399 - 2⁵ = 222055367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222055369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111027699 + 111027700.

It is an arithmetic number, because the mean of its divisors is an integer number (111027700).

Almost surely, 2^222055399 is an apocalyptic number.

222055399 is a deficient number, since it is larger than the sum of its proper divisors (1).

222055399 is an equidigital number, since it uses as much as digits as its factorization.

222055399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 222055399 is about 14901.5233785006. The cubic root of 222055399 is about 605.5552573775. Note that the first 3 decimals are identical.

The spelling of 222055399 in words is "two hundred twenty-two million, fifty-five thousand, three hundred ninety-nine".