3213212231 has 4 divisors (see below), whose sum is σ = 3225430032. Its totient is φ = 3200994432.

The previous prime is 3213212221. The next prime is 3213212237. The reversal of 3213212231 is 1322123123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322123123 = 31 ⋅42649133.

It is a cyclic number.

It is not a de Polignac number, because 3213212231 - 2²² = 3209017927 is a prime.

It is a super-2 number, since 2×3213212231² = 20649465682895994722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213212237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6108506 + ... + 6109031.

It is an arithmetic number, because the mean of its divisors is an integer number (806357508).

Almost surely, 2^3213212231 is an apocalyptic number.

3213212231 is a deficient number, since it is larger than the sum of its proper divisors (12217801).

3213212231 is a wasteful number, since it uses less digits than its factorization.

3213212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12217800.

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

The square root of 3213212231 is about 56685.2029281011. The cubic root of 3213212231 is about 1475.6379094256.

Adding to 3213212231 its reverse (1322123123), we get a palindrome (4535335354).

The spelling of 3213212231 in words is "three billion, two hundred thirteen million, two hundred twelve thousand, two hundred thirty-one".