1220323233 has 16 divisors (see below), whose sum is σ = 1689863040. Its totient is φ = 782660736.

The previous prime is 1220323231. The next prime is 1220323289. The reversal of 1220323233 is 3323230221.

It is not a de Polignac number, because 1220323233 - 2¹ = 1220323231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220323231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51885 + ... + 71642.

It is an arithmetic number, because the mean of its divisors is an integer number (105616440).

Almost surely, 2^1220323233 is an apocalyptic number.

It is an amenable number.

1220323233 is a deficient number, since it is larger than the sum of its proper divisors (469539807).

1220323233 is a wasteful number, since it uses less digits than its factorization.

1220323233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123656.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 1220323233 is about 34933.1251536418. The cubic root of 1220323233 is about 1068.6240890484.

Adding to 1220323233 its reverse (3323230221), we get a palindrome (4543553454).

The spelling of 1220323233 in words is "one billion, two hundred twenty million, three hundred twenty-three thousand, two hundred thirty-three".