222269 has 2 divisors, whose sum is σ = 222270. Its totient is φ = 222268.

The previous prime is 222247. The next prime is 222289. The reversal of 222269 is 962222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220900 + 1369 = 470^2 + 37^2 .

It is a cyclic number.

It is not a de Polignac number, because 222269 - 2¹⁶ = 156733 is a prime.

It is a super-2 number, since 2×222269² = 98807016722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 10 and base 15.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111134 + 111135.

It is an arithmetic number, because the mean of its divisors is an integer number (111135).

2²²²²⁶⁹ is an apocalyptic number.

It is an amenable number.

222269 is a deficient number, since it is larger than the sum of its proper divisors (1).

222269 is an equidigital number, since it uses as much as digits as its factorization.

222269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

The square root of 222269 is about 471.4541335061. The cubic root of 222269 is about 60.5749361727.

The spelling of 222269 in words is "two hundred twenty-two thousand, two hundred sixty-nine".