3811122312211 has 4 divisors (see below), whose sum is σ = 3811157489232. Its totient is φ = 3811087135192.

The previous prime is 3811122312181. The next prime is 3811122312223. The reversal of 3811122312211 is 1122132211183.

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 3811122312211 - 2²¹ = 3811120215059 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 3811122312211.

It is not an unprimeable number, because it can be changed into a prime (3811122312271) 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 in 3 ways as a sum of consecutive naturals, for example, 17425495 + ... + 17642848.

It is an arithmetic number, because the mean of its divisors is an integer number (952789372308).

Almost surely, 2^{3811122312211} is an apocalyptic number.

3811122312211 is a deficient number, since it is larger than the sum of its proper divisors (35177021).

3811122312211 is a wasteful number, since it uses less digits than its factorization.

3811122312211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35177020.

The product of its digits is 1152, while the sum is 28.

Adding to 3811122312211 its reverse (1122132211183), we get a palindrome (4933254523394).

The spelling of 3811122312211 in words is "three trillion, eight hundred eleven billion, one hundred twenty-two million, three hundred twelve thousand, two hundred eleven".