222969681 has 12 divisors (see below), whose sum is σ = 351346320. Its totient is φ = 135133080.

The previous prime is 222969631. The next prime is 222969683. The reversal of 222969681 is 186969222.

It is not a de Polignac number, because 222969681 - 2⁹ = 222969169 is a prime.

It is a super-2 number, since 2×222969681² = 99430957290483522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222969683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1126011 + ... + 1126208.

It is an arithmetic number, because the mean of its divisors is an integer number (29278860).

Almost surely, 2^222969681 is an apocalyptic number.

It is an amenable number.

222969681 is a deficient number, since it is larger than the sum of its proper divisors (128376639).

222969681 is a wasteful number, since it uses less digits than its factorization.

222969681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252236 (or 2252233 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 222969681 is about 14932.1693333554. The cubic root of 222969681 is about 606.3852156541.

The spelling of 222969681 in words is "two hundred twenty-two million, nine hundred sixty-nine thousand, six hundred eighty-one".