22226137 has 2 divisors, whose sum is σ = 22226138. Its totient is φ = 22226136.

The previous prime is 22226129. The next prime is 22226153. The reversal of 22226137 is 73162222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22099401 + 126736 = 4701^2 + 356^2 .

It is a cyclic number.

It is not a de Polignac number, because 22226137 - 2³ = 22226129 is a prime.

It is not a weakly prime, because it can be changed into another prime (22226117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11113068 + 11113069.

It is an arithmetic number, because the mean of its divisors is an integer number (11113069).

Almost surely, 2^22226137 is an apocalyptic number.

It is an amenable number.

22226137 is a deficient number, since it is larger than the sum of its proper divisors (1).

22226137 is an equidigital number, since it uses as much as digits as its factorization.

22226137 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 22226137 is about 4714.4604145119. The cubic root of 22226137 is about 281.1607300552.

Adding to 22226137 its reverse (73162222), we get a palindrome (95388359).

The spelling of 22226137 in words is "twenty-two million, two hundred twenty-six thousand, one hundred thirty-seven".