311221000201112 has 16 divisors (see below), whose sum is σ = 583539870321360. Its totient is φ = 155610368115424.

The previous prime is 311221000201099. The next prime is 311221000201117. The reversal of 311221000201112 is 211102000122113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311221000201117) 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, 6090428 + ... + 25681419.

It is an arithmetic number, because the mean of its divisors is an integer number (36471241895085).

Almost surely, 2^{311221000201112} is an apocalyptic number.

It is an amenable number.

311221000201112 is a deficient number, since it is larger than the sum of its proper divisors (272318870120248).

311221000201112 is a wasteful number, since it uses less digits than its factorization.

311221000201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32996290 (or 32996286 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 311221000201112 its reverse (211102000122113), we get a palindrome (522323000323225).

The spelling of 311221000201112 in words is "three hundred eleven trillion, two hundred twenty-one billion, two hundred one thousand, one hundred twelve".