222936169 has 4 divisors (see below), whose sum is σ = 223190100. Its totient is φ = 222682240.

The previous prime is 222936163. The next prime is 222936173. The reversal of 222936169 is 961639222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 961639222 = 2 ⋅480819611.

It can be written as a sum of positive squares in 2 ways, for example, as 115025625 + 107910544 = 10725^2 + 10388^2 .

It is a cyclic number.

It is not a de Polignac number, because 222936169 - 2¹¹ = 222934121 is a prime.

It is a super-2 number, since 2×222936169² = 99401070896793122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222936163) 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, 125644 + ... + 127405.

It is an arithmetic number, because the mean of its divisors is an integer number (55797525).

Almost surely, 2^222936169 is an apocalyptic number.

It is an amenable number.

222936169 is a deficient number, since it is larger than the sum of its proper divisors (253931).

222936169 is an equidigital number, since it uses as much as digits as its factorization.

222936169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253930.

The product of its digits is 69984, while the sum is 40.

The square root of 222936169 is about 14931.0471501499. The cubic root of 222936169 is about 606.3548345436.

The spelling of 222936169 in words is "two hundred twenty-two million, nine hundred thirty-six thousand, one hundred sixty-nine".