222591229 has 4 divisors (see below), whose sum is σ = 254389984. Its totient is φ = 190792476.

The previous prime is 222591227. The next prime is 222591233. The reversal of 222591229 is 922195222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 222591229 - 2¹ = 222591227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222591194 and 222591203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222591227) 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, 15899367 + ... + 15899380.

It is an arithmetic number, because the mean of its divisors is an integer number (63597496).

Almost surely, 2^222591229 is an apocalyptic number.

It is an amenable number.

222591229 is a deficient number, since it is larger than the sum of its proper divisors (31798755).

222591229 is an equidigital number, since it uses as much as digits as its factorization.

222591229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31798754.

The product of its digits is 12960, while the sum is 34.

The square root of 222591229 is about 14919.4915798093. The cubic root of 222591229 is about 606.0419437832.

The spelling of 222591229 in words is "two hundred twenty-two million, five hundred ninety-one thousand, two hundred twenty-nine".