3212232331221 has 64 divisors (see below), whose sum is σ = 5199511253760. Its totient is φ = 1951748628480.

The previous prime is 3212232331181. The next prime is 3212232331237. The reversal of 3212232331221 is 1221332322123.

3212232331221 is a `hidden beast` number, since 3 + 2 + 1 + 2 + 2 + 323 + 312 + 21 = 666.

It is not a de Polignac number, because 3212232331221 - 2³³ = 3203642396629 is a prime.

It is a super-3 number, since 3×3212232331221³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212232336221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3135205 + ... + 4031621.

It is an arithmetic number, because the mean of its divisors is an integer number (81242363340).

Almost surely, 2^{3212232331221} is an apocalyptic number.

It is an amenable number.

3212232331221 is a deficient number, since it is larger than the sum of its proper divisors (1987278922539).

3212232331221 is a wasteful number, since it uses less digits than its factorization.

3212232331221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896691 (or 896685 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 3212232331221 its reverse (1221332322123), we get a palindrome (4433564653344).

It can be divided in two parts, 3212232 and 331221, that added together give a palindrome (3543453).

The spelling of 3212232331221 in words is "three trillion, two hundred twelve billion, two hundred thirty-two million, three hundred thirty-one thousand, two hundred twenty-one".