3221012111111 has 4 divisors (see below), whose sum is σ = 3221029254072. Its totient is φ = 3220994968152.

The previous prime is 3221012111099. The next prime is 3221012111137. The reversal of 3221012111111 is 1111112101223.

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

It is a cyclic number.

It is not a de Polignac number, because 3221012111111 - 2¹⁰ = 3221012110087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3221012111111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221012111311) 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, 8286485 + ... + 8666478.

It is an arithmetic number, because the mean of its divisors is an integer number (805257313518).

Almost surely, 2^{3221012111111} is an apocalyptic number.

3221012111111 is a deficient number, since it is larger than the sum of its proper divisors (17142961).

3221012111111 is a wasteful number, since it uses less digits than its factorization.

3221012111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17142960.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 3221012111111 its reverse (1111112101223), we get a palindrome (4332124212334).

The spelling of 3221012111111 in words is "three trillion, two hundred twenty-one billion, twelve million, one hundred eleven thousand, one hundred eleven".