3211223111111 has 2 divisors, whose sum is σ = 3211223111112. Its totient is φ = 3211223111110.

The previous prime is 3211223111099. The next prime is 3211223111183. The reversal of 3211223111111 is 1111113221123.

It is a m-pointer prime, because the next prime (3211223111183) can be obtained adding 3211223111111 to its product of digits (72).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3211223111111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3211223101111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1605611555555 + 1605611555556.

It is an arithmetic number, because the mean of its divisors is an integer number (1605611555556).

Almost surely, 2^{3211223111111} is an apocalyptic number.

3211223111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

3211223111111 is an equidigital number, since it uses as much as digits as its factorization.

3211223111111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 20.

Adding to 3211223111111 its reverse (1111113221123), we get a palindrome (4322336332234).

The spelling of 3211223111111 in words is "three trillion, two hundred eleven billion, two hundred twenty-three million, one hundred eleven thousand, one hundred eleven".