222221227 has 2 divisors, whose sum is σ = 222221228. Its totient is φ = 222221226.

The previous prime is 222221221. The next prime is 222221257. The reversal of 222221227 is 722122222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222221227 - 2¹⁹ = 221696939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222221198 and 222221207.

It is not a weakly prime, because it can be changed into another prime (222221221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110613 + 111110614.

It is an arithmetic number, because the mean of its divisors is an integer number (111110614).

Almost surely, 2^222221227 is an apocalyptic number.

222221227 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221227 is an equidigital number, since it uses as much as digits as its factorization.

222221227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896, while the sum is 22.

The square root of 222221227 is about 14907.0864691931. The cubic root of 222221227 is about 605.7059600566.

Adding to 222221227 its reverse (722122222), we get a palindrome (944343449).

The spelling of 222221227 in words is "two hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-seven".