1223522344 has 32 divisors (see below), whose sum is σ = 2560868640. Its totient is φ = 543211200.

The previous prime is 1223522299. The next prime is 1223522371. The reversal of 1223522344 is 4432253221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157887 + ... + 165454.

It is an arithmetic number, because the mean of its divisors is an integer number (80027145).

Almost surely, 2^1223522344 is an apocalyptic number.

It is an amenable number.

1223522344 is an abundant number, since it is smaller than the sum of its proper divisors (1337346296).

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

1223522344 is a wasteful number, since it uses less digits than its factorization.

1223522344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323401 (or 323397 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 1223522344 is about 34978.8842589354. The cubic root of 1223522344 is about 1069.5570834031.

Adding to 1223522344 its reverse (4432253221), we get a palindrome (5655775565).

The spelling of 1223522344 in words is "one billion, two hundred twenty-three million, five hundred twenty-two thousand, three hundred forty-four".