222299869 has 6 divisors (see below), whose sum is σ = 244346270. Its totient is φ = 202090680.

The previous prime is 222299851. The next prime is 222299873. The reversal of 222299869 is 968992222.

It can be written as a sum of positive squares in only one way, i.e., 169911225 + 52388644 = 13035^2 + 7238^2 .

It is a de Polignac number, because none of the positive numbers 2^k-222299869 is a prime.

It is a super-2 number, since 2×222299869² = 98834463514834322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222299569) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 918474 + ... + 918715.

Almost surely, 2^222299869 is an apocalyptic number.

It is an amenable number.

222299869 is a deficient number, since it is larger than the sum of its proper divisors (22046401).

222299869 is a wasteful number, since it uses less digits than its factorization.

222299869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837211 (or 1837200 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 222299869 is about 14909.7239746415. The cubic root of 222299869 is about 605.7774028418. Note that the first 3 decimals are identical.

The spelling of 222299869 in words is "two hundred twenty-two million, two hundred ninety-nine thousand, eight hundred sixty-nine".