222312229 has 8 divisors (see below), whose sum is σ = 227012760. Its totient is φ = 217656576.

The previous prime is 222312221. The next prime is 222312257. The reversal of 222312229 is 922213222.

It can be written as a sum of positive squares in 4 ways, for example, as 26368225 + 195944004 = 5135^2 + 13998^2 .

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 222312229 - 2³ = 222312221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222312221) 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, 1114 + ... + 21115.

It is an arithmetic number, because the mean of its divisors is an integer number (28376595).

Almost surely, 2^222312229 is an apocalyptic number.

It is an amenable number.

222312229 is a deficient number, since it is larger than the sum of its proper divisors (4700531).

222312229 is a wasteful number, since it uses less digits than its factorization.

222312229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22439.

The product of its digits is 1728, while the sum is 25.

The square root of 222312229 is about 14910.1384634751. The cubic root of 222312229 is about 605.7886298239.

The spelling of 222312229 in words is "two hundred twenty-two million, three hundred twelve thousand, two hundred twenty-nine".