222221021227 has 2 divisors, whose sum is σ = 222221021228. Its totient is φ = 222221021226.

The previous prime is 222221021219. The next prime is 222221021263. The reversal of 222221021227 is 722120122222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222221021227 - 2³ = 222221021219 is a prime.

It is not a weakly prime, because it can be changed into another prime (222221021207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110510613 + 111110510614.

It is an arithmetic number, because the mean of its divisors is an integer number (111110510614).

Almost surely, 2^222221021227 is an apocalyptic number.

222221021227 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221021227 is an equidigital number, since it uses as much as digits as its factorization.

222221021227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 25.

Adding to 222221021227 its reverse (722120122222), we get a palindrome (944341143449).

The spelling of 222221021227 in words is "two hundred twenty-two billion, two hundred twenty-one million, twenty-one thousand, two hundred twenty-seven".