3221000012311 has 4 divisors (see below), whose sum is σ = 3221028131400. Its totient is φ = 3220971893224.

The previous prime is 3221000012299. The next prime is 3221000012323. The reversal of 3221000012311 is 1132100001223.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3221000012299) and next prime (3221000012323).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3221000012311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221000012381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13887016 + ... + 14117053.

It is an arithmetic number, because the mean of its divisors is an integer number (805257032850).

Almost surely, 2^{3221000012311} is an apocalyptic number.

3221000012311 is a deficient number, since it is larger than the sum of its proper divisors (28119089).

3221000012311 is a wasteful number, since it uses less digits than its factorization.

3221000012311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28119088.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 3221000012311 its reverse (1132100001223), we get a palindrome (4353100013534).

The spelling of 3221000012311 in words is "three trillion, two hundred twenty-one billion, twelve thousand, three hundred eleven".