1220023233 has 24 divisors (see below), whose sum is σ = 2070344640. Its totient is φ = 682529760.

The previous prime is 1220023213. The next prime is 1220023253. The reversal of 1220023233 is 3323200221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1220023213) and next prime (1220023253).

It is not a de Polignac number, because 1220023233 - 2⁶ = 1220023169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220023213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 472693 + ... + 475266.

It is an arithmetic number, because the mean of its divisors is an integer number (86264360).

Almost surely, 2^1220023233 is an apocalyptic number.

1220023233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1220023233 is a deficient number, since it is larger than the sum of its proper divisors (850321407).

1220023233 is a wasteful number, since it uses less digits than its factorization.

1220023233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947989 (or 947986 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1220023233 is about 34928.8309709901. The cubic root of 1220023233 is about 1068.5365129340.

Adding to 1220023233 its reverse (3323200221), we get a palindrome (4543223454).

The spelling of 1220023233 in words is "one billion, two hundred twenty million, twenty-three thousand, two hundred thirty-three".