222102169 has 4 divisors (see below), whose sum is σ = 222142500. Its totient is φ = 222061840.

The previous prime is 222102163. The next prime is 222102203. The reversal of 222102169 is 961201222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 137241225 + 84860944 = 11715^2 + 9212^2 .

It is a cyclic number.

It is not a de Polignac number, because 222102169 - 2⁹ = 222101657 is a prime.

It is a super-2 number, since 2×222102169² = 98658746949009122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222102163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10294 + ... + 23455.

It is an arithmetic number, because the mean of its divisors is an integer number (55535625).

Almost surely, 2^222102169 is an apocalyptic number.

It is an amenable number.

222102169 is a deficient number, since it is larger than the sum of its proper divisors (40331).

222102169 is an equidigital number, since it uses as much as digits as its factorization.

222102169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40330.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 222102169 is about 14903.0925985179. The cubic root of 222102169 is about 605.5977690380.

The spelling of 222102169 in words is "two hundred twenty-two million, one hundred two thousand, one hundred sixty-nine".