222205739 has 12 divisors (see below), whose sum is σ = 259075944. Its totient is φ = 190026144.

The previous prime is 222205727. The next prime is 222205751. The reversal of 222205739 is 937502222.

It is an interprime number because it is at equal distance from previous prime (222205727) and next prime (222205751).

It is not a de Polignac number, because 222205739 - 2⁸ = 222205483 is a prime.

It is a super-2 number, since 2×222205739² = 98750780889072242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222205769) 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 in 11 ways as a sum of consecutive naturals, for example, 17432 + ... + 27354.

It is an arithmetic number, because the mean of its divisors is an integer number (21589662).

Almost surely, 2^222205739 is an apocalyptic number.

222205739 is a deficient number, since it is larger than the sum of its proper divisors (36870205).

222205739 is an equidigital number, since it uses as much as digits as its factorization.

222205739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10394 (or 10387 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 222205739 is about 14906.5669756655. The cubic root of 222205739 is about 605.6918879058.

The spelling of 222205739 in words is "two hundred twenty-two million, two hundred five thousand, seven hundred thirty-nine".