222307427 has 2 divisors, whose sum is σ = 222307428. Its totient is φ = 222307426.

The previous prime is 222307403. The next prime is 222307441. The reversal of 222307427 is 724703222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222307427 - 2¹² = 222303331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222307427.

It is not a weakly prime, because it can be changed into another prime (222307927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111153713 + 111153714.

It is an arithmetic number, because the mean of its divisors is an integer number (111153714).

Almost surely, 2^222307427 is an apocalyptic number.

222307427 is a deficient number, since it is larger than the sum of its proper divisors (1).

222307427 is an equidigital number, since it uses as much as digits as its factorization.

222307427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 222307427 is about 14909.9774312371. The cubic root of 222307427 is about 605.7842680636.

The spelling of 222307427 in words is "two hundred twenty-two million, three hundred seven thousand, four hundred twenty-seven".