222136227 has 6 divisors (see below), whose sum is σ = 320863452. Its totient is φ = 148090812.

The previous prime is 222136217. The next prime is 222136249. The reversal of 222136227 is 722631222.

222136227 is a `hidden beast` number, since 2 + 22 + 13 + 622 + 7 = 666.

It is not a de Polignac number, because 222136227 - 2⁷ = 222136099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222136227.

It is not an unprimeable number, because it can be changed into a prime (222136217) 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, 12340893 + ... + 12340910.

It is an arithmetic number, because the mean of its divisors is an integer number (53477242).

Almost surely, 2^222136227 is an apocalyptic number.

222136227 is a deficient number, since it is larger than the sum of its proper divisors (98727225).

222136227 is a wasteful number, since it uses less digits than its factorization.

222136227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24681809 (or 24681806 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 222136227 is about 14904.2352034581. The cubic root of 222136227 is about 605.6287223522.

Adding to 222136227 its reverse (722631222), we get a palindrome (944767449).

The spelling of 222136227 in words is "two hundred twenty-two million, one hundred thirty-six thousand, two hundred twenty-seven".