222636241 has 9 divisors (see below), whose sum is σ = 228593001. Its totient is φ = 216831972.

The previous prime is 222636223. The next prime is 222636263. The reversal of 222636241 is 142636222.

The square root of 222636241 is 14921.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 222636241 - 2⁵ = 222636209 is a prime.

It is a super-2 number, since 2×222636241² = 99133791613220162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222636341) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 641430 + ... + 641776.

Almost surely, 2^222636241 is an apocalyptic number.

222636241 is the 14921-st square number.

222636241 is the 7461-st centered octagonal number.

It is an amenable number.

222636241 is a deficient number, since it is larger than the sum of its proper divisors (5956760).

222636241 is an frugal number, since it uses more digits than its factorization.

222636241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 390 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The cubic root of 222636241 is about 606.0827919357.

The spelling of 222636241 in words is "two hundred twenty-two million, six hundred thirty-six thousand, two hundred forty-one".