3221143331 has 12 divisors (see below), whose sum is σ = 3749317272. Its totient is φ = 2759305248.

The previous prime is 3221143279. The next prime is 3221143337. The reversal of 3221143331 is 1333411223.

It is not a de Polignac number, because 3221143331 - 2¹⁸ = 3220881187 is a prime.

It is a super-2 number, since 2×3221143331² = 20751528717691551122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3221143297 and 3221143306.

It is not an unprimeable number, because it can be changed into a prime (3221143337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65351 + ... + 103503.

It is an arithmetic number, because the mean of its divisors is an integer number (312443106).

Almost surely, 2^3221143331 is an apocalyptic number.

3221143331 is a deficient number, since it is larger than the sum of its proper divisors (528173941).

3221143331 is a wasteful number, since it uses less digits than its factorization.

3221143331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39890 (or 39883 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

The square root of 3221143331 is about 56755.1172230311. The cubic root of 3221143331 is about 1476.8510065860.

Adding to 3221143331 its reverse (1333411223), we get a palindrome (4554554554).

The spelling of 3221143331 in words is "three billion, two hundred twenty-one million, one hundred forty-three thousand, three hundred thirty-one".