1222445124 has 72 divisors (see below), whose sum is σ = 3277415232. Its totient is φ = 383359680.

The previous prime is 1222445111. The next prime is 1222445141. The reversal of 1222445124 is 4215442221.

It is a happy number.

1222445124 is a `hidden beast` number, since 122 + 24 + 4 + 512 + 4 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38407 + ... + 62609.

It is an arithmetic number, because the mean of its divisors is an integer number (45519656).

Almost surely, 2^1222445124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222445124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1638707616).

1222445124 is an abundant number, since it is smaller than the sum of its proper divisors (2054970108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222445124 is a wasteful number, since it uses less digits than its factorization.

1222445124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24297 (or 24292 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 1222445124 is about 34963.4827212622. The cubic root of 1222445124 is about 1069.2431028754.

Adding to 1222445124 its reverse (4215442221), we get a palindrome (5437887345).

The spelling of 1222445124 in words is "one billion, two hundred twenty-two million, four hundred forty-five thousand, one hundred twenty-four".