3212211321 has 36 divisors (see below), whose sum is σ = 5108717796. Its totient is φ = 1943472960.

The previous prime is 3212211311. The next prime is 3212211377. The reversal of 3212211321 is 1231122123.

3212211321 is a `hidden beast` number, since 321 + 2 + 21 + 1 + 321 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3202994025 + 9217296 = 56595^2 + 3036^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3212211321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3212211294 and 3212211303.

It is not an unprimeable number, because it can be changed into a prime (3212211311) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 735075 + ... + 739431.

Almost surely, 2^3212211321 is an apocalyptic number.

It is an amenable number.

3212211321 is a deficient number, since it is larger than the sum of its proper divisors (1896506475).

3212211321 is a wasteful number, since it uses less digits than its factorization.

3212211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5062 (or 5048 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 3212211321 is about 56676.3735695925. The cubic root of 3212211321 is about 1475.4846739695.

Adding to 3212211321 its reverse (1231122123), we get a palindrome (4443333444).

The spelling of 3212211321 in words is "three billion, two hundred twelve million, two hundred eleven thousand, three hundred twenty-one".