222442719 has 4 divisors (see below), whose sum is σ = 296590296. Its totient is φ = 148295144.

The previous prime is 222442679. The next prime is 222442733. The reversal of 222442719 is 917244222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222442719 - 2⁸ = 222442463 is a prime.

It is a super-2 number, since 2×222442719² = 98961526472225922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222442719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222442769) 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, 37073784 + ... + 37073789.

It is an arithmetic number, because the mean of its divisors is an integer number (74147574).

Almost surely, 2^222442719 is an apocalyptic number.

222442719 is a deficient number, since it is larger than the sum of its proper divisors (74147577).

222442719 is an equidigital number, since it uses as much as digits as its factorization.

222442719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74147576.

The product of its digits is 16128, while the sum is 33.

The square root of 222442719 is about 14914.5137031014. The cubic root of 222442719 is about 605.9071326720.

The spelling of 222442719 in words is "two hundred twenty-two million, four hundred forty-two thousand, seven hundred nineteen".