1233221312 has 28 divisors (see below), whose sum is σ = 2471415936. Its totient is φ = 610502400.

The previous prime is 1233221303. The next prime is 1233221321. The reversal of 1233221312 is 2131223321.

It is an interprime number because it is at equal distance from previous prime (1233221303) and next prime (1233221321).

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, 88928 + ... + 101855.

Almost surely, 2^1233221312 is an apocalyptic number.

It is an amenable number.

1233221312 is an abundant number, since it is smaller than the sum of its proper divisors (1238194624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1233221312 is a wasteful number, since it uses less digits than its factorization.

1233221312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190896 (or 190886 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1233221312 is about 35117.2509174622. The cubic root of 1233221312 is about 1072.3758057171.

Adding to 1233221312 its reverse (2131223321), we get a palindrome (3364444633).

The spelling of 1233221312 in words is "one billion, two hundred thirty-three million, two hundred twenty-one thousand, three hundred twelve".