22216927 has 2 divisors, whose sum is σ = 22216928. Its totient is φ = 22216926.

The previous prime is 22216921. The next prime is 22216967. The reversal of 22216927 is 72961222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22216927 - 2¹⁹ = 21692639 is a prime.

It is equal to p_1401997 and since 22216927 and 1401997 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22216921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11108463 + 11108464.

It is an arithmetic number, because the mean of its divisors is an integer number (11108464).

Almost surely, 2^22216927 is an apocalyptic number.

22216927 is a deficient number, since it is larger than the sum of its proper divisors (1).

22216927 is an equidigital number, since it uses as much as digits as its factorization.

22216927 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 22216927 is about 4713.4835313174. The cubic root of 22216927 is about 281.1218891764.

The spelling of 22216927 in words is "twenty-two million, two hundred sixteen thousand, nine hundred twenty-seven".