1220023244 has 24 divisors (see below), whose sum is σ = 2330223168. Its totient is φ = 554297040.

The previous prime is 1220023213. The next prime is 1220023253. The reversal of 1220023244 is 4423200221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113987 + ... + 124229.

It is an arithmetic number, because the mean of its divisors is an integer number (97092632).

Almost surely, 2^1220023244 is an apocalyptic number.

It is an amenable number.

1220023244 is a deficient number, since it is larger than the sum of its proper divisors (1110199924).

1220023244 is a wasteful number, since it uses less digits than its factorization.

1220023244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12965 (or 12963 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1220023244 is about 34928.8311284532. The cubic root of 1220023244 is about 1068.5365161454.

Adding to 1220023244 its reverse (4423200221), we get a palindrome (5643223465).

The spelling of 1220023244 in words is "one billion, two hundred twenty million, twenty-three thousand, two hundred forty-four".