22266999 has 12 divisors (see below), whose sum is σ = 32526000. Its totient is φ = 14677344.

The previous prime is 22266997. The next prime is 22267001. The reversal of 22266999 is 99966222.

It is an interprime number because it is at equal distance from previous prime (22266997) and next prime (22267001).

It is not a de Polignac number, because 22266999 - 2¹ = 22266997 is a prime.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22266997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13099 + ... + 14700.

It is an arithmetic number, because the mean of its divisors is an integer number (2710500).

Almost surely, 2^22266999 is an apocalyptic number.

22266999 is a deficient number, since it is larger than the sum of its proper divisors (10259001).

22266999 is a wasteful number, since it uses less digits than its factorization.

22266999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27894 (or 27891 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 22266999 is about 4718.7921123949. The cubic root of 22266999 is about 281.3329260655.

The spelling of 22266999 in words is "twenty-two million, two hundred sixty-six thousand, nine hundred ninety-nine".