222428027 has 2 divisors, whose sum is σ = 222428028. Its totient is φ = 222428026.

The previous prime is 222427991. The next prime is 222428029. The reversal of 222428027 is 720824222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222428027 - 2¹² = 222423931 is a prime.

It is a super-2 number, since 2×222428027² = 98948454390225458, which contains 22 as substring.

Together with 222428029, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222428029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111214013 + 111214014.

It is an arithmetic number, because the mean of its divisors is an integer number (111214014).

Almost surely, 2^222428027 is an apocalyptic number.

222428027 is a deficient number, since it is larger than the sum of its proper divisors (1).

222428027 is an equidigital number, since it uses as much as digits as its factorization.

222428027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 222428027 is about 14914.0211546048. The cubic root of 222428027 is about 605.8937926330.

The spelling of 222428027 in words is "two hundred twenty-two million, four hundred twenty-eight thousand, twenty-seven".