3211143221 has 8 divisors (see below), whose sum is σ = 3772532064. Its totient is φ = 2694665520.

The previous prime is 3211143217. The next prime is 3211143239. The reversal of 3211143221 is 1223411123.

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 3211143221 - 2² = 3211143217 is a prime.

It is a super-2 number, since 2×3211143221² = 20622881571548509682, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 3211143193 and 3211143202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3211143421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11227631 + ... + 11227916.

It is an arithmetic number, because the mean of its divisors is an integer number (471566508).

Almost surely, 2^3211143221 is an apocalyptic number.

It is an amenable number.

3211143221 is a deficient number, since it is larger than the sum of its proper divisors (561388843).

3211143221 is a wasteful number, since it uses less digits than its factorization.

3211143221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22455571.

The product of its digits is 288, while the sum is 20.

The square root of 3211143221 is about 56666.9499885074. The cubic root of 3211143221 is about 1475.3211168712.

Adding to 3211143221 its reverse (1223411123), we get a palindrome (4434554344).

The spelling of 3211143221 in words is "three billion, two hundred eleven million, one hundred forty-three thousand, two hundred twenty-one".