1201233321 has 12 divisors (see below), whose sum is σ = 1799378672. Its totient is φ = 800822052.

The previous prime is 1201233283. The next prime is 1201233343. The reversal of 1201233321 is 1233321021.

It is not a de Polignac number, because 1201233321 - 2⁷ = 1201233193 is a prime.

It is a super-2 number, since 2×1201233321² = 2885922982961378082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1201233294 and 1201233303.

It is not an unprimeable number, because it can be changed into a prime (1201233391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2471431 + ... + 2471916.

Almost surely, 2^1201233321 is an apocalyptic number.

It is an amenable number.

1201233321 is a deficient number, since it is larger than the sum of its proper divisors (598145351).

1201233321 is an frugal number, since it uses more digits than its factorization.

1201233321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4943362 (or 4943350 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1201233321 is about 34658.8130350709. The cubic root of 1201233321 is about 1063.0224998460.

Adding to 1201233321 its reverse (1233321021), we get a palindrome (2434554342).

The spelling of 1201233321 in words is "one billion, two hundred one million, two hundred thirty-three thousand, three hundred twenty-one".