1222804664 has 16 divisors (see below), whose sum is σ = 2348680320. Its totient is φ = 596489920.

The previous prime is 1222804663. The next prime is 1222804673. The reversal of 1222804664 is 4664082221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222804663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1863704 + ... + 1864359.

It is an arithmetic number, because the mean of its divisors is an integer number (146792520).

Almost surely, 2^1222804664 is an apocalyptic number.

It is an amenable number.

1222804664 is a deficient number, since it is larger than the sum of its proper divisors (1125875656).

1222804664 is a wasteful number, since it uses less digits than its factorization.

1222804664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728110 (or 3728106 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 1222804664 is about 34968.6239935174. The cubic root of 1222804664 is about 1069.3479195728.

Adding to 1222804664 its reverse (4664082221), we get a palindrome (5886886885).

The spelling of 1222804664 in words is "one billion, two hundred twenty-two million, eight hundred four thousand, six hundred sixty-four".