22818227 has 2 divisors, whose sum is σ = 22818228. Its totient is φ = 22818226.

The previous prime is 22818179. The next prime is 22818241. The reversal of 22818227 is 72281822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22818227 - 2⁶ = 22818163 is a prime.

It is equal to p_1437467 and since 22818227 and 1437467 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 22818193 and 22818202.

It is not a weakly prime, because it can be changed into another prime (22818727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11409113 + 11409114.

It is an arithmetic number, because the mean of its divisors is an integer number (11409114).

Almost surely, 2^22818227 is an apocalyptic number.

22818227 is a deficient number, since it is larger than the sum of its proper divisors (1).

22818227 is an equidigital number, since it uses as much as digits as its factorization.

22818227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7168, while the sum is 32.

The square root of 22818227 is about 4776.8427857739. The cubic root of 22818227 is about 283.6355297807.

The spelling of 22818227 in words is "twenty-two million, eight hundred eighteen thousand, two hundred twenty-seven".