222042427 has 2 divisors, whose sum is σ = 222042428. Its totient is φ = 222042426.

The previous prime is 222042371. The next prime is 222042433. The reversal of 222042427 is 724240222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222042427 - 2²³ = 213653819 is a prime.

It is not a weakly prime, because it can be changed into another prime (222042467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111021213 + 111021214.

It is an arithmetic number, because the mean of its divisors is an integer number (111021214).

Almost surely, 2^222042427 is an apocalyptic number.

222042427 is a deficient number, since it is larger than the sum of its proper divisors (1).

222042427 is an equidigital number, since it uses as much as digits as its factorization.

222042427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 222042427 is about 14901.0881146311. The cubic root of 222042427 is about 605.5434654016.

Adding to 222042427 its reverse (724240222), we get a palindrome (946282649).

The spelling of 222042427 in words is "two hundred twenty-two million, forty-two thousand, four hundred twenty-seven".