22666622 has 16 divisors (see below), whose sum is σ = 37461744. Its totient is φ = 10201000.

The previous prime is 22666621. The next prime is 22666663.

22666622 is nontrivially palindromic 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 (22666621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224372 + ... + 224472.

It is an arithmetic number, because the mean of its divisors is an integer number (2341359).

Almost surely, 2^22666622 is an apocalyptic number.

22666622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22666622 is a deficient number, since it is larger than the sum of its proper divisors (14795122).

22666622 is an frugal number, since it uses more digits than its factorization.

22666622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316 (or 114 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 22666622 is about 4760.9475947546. The cubic root of 22666622 is about 283.0059723962.

It can be divided in two parts, 2266 and 6622, that added together give a palindrome (8888).

The spelling of 22666622 in words is "twenty-two million, six hundred sixty-six thousand, six hundred twenty-two".