5311221211 has 16 divisors (see below), whose sum is σ = 5577465600. Its totient is φ = 5050896928.

The previous prime is 5311221191. The next prime is 5311221287. The reversal of 5311221211 is 1121221135.

It is a cyclic number.

It is not a de Polignac number, because 5311221211 - 2¹¹ = 5311219163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5311221011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832050 + ... + 838408.

It is an arithmetic number, because the mean of its divisors is an integer number (348591600).

Almost surely, 2^5311221211 is an apocalyptic number.

5311221211 is a deficient number, since it is larger than the sum of its proper divisors (266244389).

5311221211 is a wasteful number, since it uses less digits than its factorization.

5311221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6818.

The product of its digits is 120, while the sum is 19.

The square root of 5311221211 is about 72878.1257374255. The cubic root of 5311221211 is about 1744.7429950205.

Adding to 5311221211 its reverse (1121221135), we get a palindrome (6432442346).

The spelling of 5311221211 in words is "five billion, three hundred eleven million, two hundred twenty-one thousand, two hundred eleven".