22316227 has 2 divisors, whose sum is σ = 22316228. Its totient is φ = 22316226.

The previous prime is 22316221. The next prime is 22316237. The reversal of 22316227 is 72261322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22316227 - 2²³ = 13927619 is a prime.

It is a super-3 number, since 3×22316227³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (22316221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11158113 + 11158114.

It is an arithmetic number, because the mean of its divisors is an integer number (11158114).

Almost surely, 2^22316227 is an apocalyptic number.

22316227 is a deficient number, since it is larger than the sum of its proper divisors (1).

22316227 is an equidigital number, since it uses as much as digits as its factorization.

22316227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 25.

The square root of 22316227 is about 4724.0053979647. The cubic root of 22316227 is about 281.5400975790.

Adding to 22316227 its reverse (72261322), we get a palindrome (94577549).

The spelling of 22316227 in words is "twenty-two million, three hundred sixteen thousand, two hundred twenty-seven".