1220322244 has 12 divisors (see below), whose sum is σ = 2175857964. Its totient is φ = 598648544.

The previous prime is 1220322217. The next prime is 1220322251. The reversal of 1220322244 is 4422230221.

It can be written as a sum of positive squares in 2 ways, for example, as 289340100 + 930982144 = 17010^2 + 30512^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2877907 + ... + 2878330.

It is an arithmetic number, because the mean of its divisors is an integer number (181321497).

Almost surely, 2^1220322244 is an apocalyptic number.

It is an amenable number.

1220322244 is a deficient number, since it is larger than the sum of its proper divisors (955535720).

1220322244 is a wasteful number, since it uses less digits than its factorization.

1220322244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5756294 (or 5756292 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1220322244 is about 34933.1109980202. The cubic root of 1220322244 is about 1068.6238003627.

Adding to 1220322244 its reverse (4422230221), we get a palindrome (5642552465).

The spelling of 1220322244 in words is "one billion, two hundred twenty million, three hundred twenty-two thousand, two hundred forty-four".