222223729 has 8 divisors (see below), whose sum is σ = 273506240. Its totient is φ = 175825296.

The previous prime is 222223709. The next prime is 222223733. The reversal of 222223729 is 927322222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222223729 - 2¹⁷ = 222092657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222223729.

It is not an unprimeable number, because it can be changed into a prime (222223709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1220919 + ... + 1221100.

It is an arithmetic number, because the mean of its divisors is an integer number (34188280).

Almost surely, 2^222223729 is an apocalyptic number.

It is an amenable number.

222223729 is a deficient number, since it is larger than the sum of its proper divisors (51282511).

222223729 is a wasteful number, since it uses less digits than its factorization.

222223729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442039.

The product of its digits is 12096, while the sum is 31.

The square root of 222223729 is about 14907.1703887760. The cubic root of 222223729 is about 605.7082332728.

The spelling of 222223729 in words is "two hundred twenty-two million, two hundred twenty-three thousand, seven hundred twenty-nine".