311222301112 has 32 divisors (see below), whose sum is σ = 597990632400. Its totient is φ = 151760876800.

The previous prime is 311222301079. The next prime is 311222301149. The reversal of 311222301112 is 211103222113.

It is a self number, because there is not a number n which added to its sum of digits gives 311222301112.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 744687 + ... + 1084897.

Almost surely, 2^311222301112 is an apocalyptic number.

It is an amenable number.

311222301112 is a deficient number, since it is larger than the sum of its proper divisors (286768331288).

311222301112 is a wasteful number, since it uses less digits than its factorization.

311222301112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343047 (or 343043 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 311222301112 its reverse (211103222113), we get a palindrome (522325523225).

The spelling of 311222301112 in words is "three hundred eleven billion, two hundred twenty-two million, three hundred one thousand, one hundred twelve".