22122164 has 6 divisors (see below), whose sum is σ = 38713794. Its totient is φ = 11061080.

The previous prime is 22122103. The next prime is 22122169. The reversal of 22122164 is 46122122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12250000 + 9872164 = 3500^2 + 3142^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765267 + ... + 2765274.

It is an arithmetic number, because the mean of its divisors is an integer number (6452299).

Almost surely, 2^22122164 is an apocalyptic number.

It is an amenable number.

22122164 is a deficient number, since it is larger than the sum of its proper divisors (16591630).

22122164 is a wasteful number, since it uses less digits than its factorization.

22122164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5530545 (or 5530543 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 22122164 is about 4703.4204574969. The cubic root of 22122164 is about 280.7216250017.

Adding to 22122164 its reverse (46122122), we get a palindrome (68244286).

The spelling of 22122164 in words is "twenty-two million, one hundred twenty-two thousand, one hundred sixty-four".