22226077 has 2 divisors, whose sum is σ = 22226078. Its totient is φ = 22226076.

The previous prime is 22226063. The next prime is 22226117. The reversal of 22226077 is 77062222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11689561 + 10536516 = 3419^2 + 3246^2 .

It is a cyclic number.

It is not a de Polignac number, because 22226077 - 2²³ = 13837469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22226047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11113038 + 11113039.

It is an arithmetic number, because the mean of its divisors is an integer number (11113039).

Almost surely, 2^22226077 is an apocalyptic number.

It is an amenable number.

22226077 is a deficient number, since it is larger than the sum of its proper divisors (1).

22226077 is an equidigital number, since it uses as much as digits as its factorization.

22226077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 22226077 is about 4714.4540511071. The cubic root of 22226077 is about 281.1604770549.

Adding to 22226077 its reverse (77062222), we get a palindrome (99288299).

The spelling of 22226077 in words is "twenty-two million, two hundred twenty-six thousand, seventy-seven".