1222322321044 has 144 divisors (see below), whose sum is σ = 2409123644928. Its totient is φ = 542104200000.

The previous prime is 1222322321029. The next prime is 1222322321047. The reversal of 1222322321044 is 4401232232221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222322321047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2140669279 + ... + 2140669849.

It is an arithmetic number, because the mean of its divisors is an integer number (16730025312).

Almost surely, 2^{1222322321044} is an apocalyptic number.

It is an amenable number.

1222322321044 is a deficient number, since it is larger than the sum of its proper divisors (1186801323884).

1222322321044 is a wasteful number, since it uses less digits than its factorization.

1222322321044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1222322321044 its reverse (4401232232221), we get a palindrome (5623554553265).

The spelling of 1222322321044 in words is "one trillion, two hundred twenty-two billion, three hundred twenty-two million, three hundred twenty-one thousand, forty-four".