3221031 has 8 divisors (see below), whose sum is σ = 4685184. Its totient is φ = 1952120.

The previous prime is 3221017. The next prime is 3221033. The reversal of 3221031 is 1301223.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3221031 - 2⁶ = 3220967 is a prime.

It is a super-2 number, since 2×3221031² = 20750081405922, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 3220998 and 3221016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48771 + ... + 48836.

It is an arithmetic number, because the mean of its divisors is an integer number (585648).

Almost surely, 2^3221031 is an apocalyptic number.

3221031 is a deficient number, since it is larger than the sum of its proper divisors (1464153).

3221031 is a wasteful number, since it uses less digits than its factorization.

3221031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97621.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3221031 is about 1794.7230984194. The cubic root of 3221031 is about 147.6833838968.

Adding to 3221031 its reverse (1301223), we get a palindrome (4522254).

The spelling of 3221031 in words is "three million, two hundred twenty-one thousand, thirty-one".