1220023232 has 28 divisors (see below), whose sum is σ = 2429758920. Its totient is φ = 607800576.

The previous prime is 1220023213. The next prime is 1220023253. The reversal of 1220023232 is 2323200221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220023232.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 16682 + ... + 52137.

Almost surely, 2^1220023232 is an apocalyptic number.

It is an amenable number.

1220023232 is a deficient number, since it is larger than the sum of its proper divisors (1209735688).

1220023232 is an equidigital number, since it uses as much as digits as its factorization.

1220023232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69108 (or 69098 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1220023232 is about 34928.8309566753. The cubic root of 1220023232 is about 1068.5365126421.

Adding to 1220023232 its reverse (2323200221), we get a palindrome (3543223453).

The spelling of 1220023232 in words is "one billion, two hundred twenty million, twenty-three thousand, two hundred thirty-two".