2211031311112 has 64 divisors (see below), whose sum is σ = 4604201481600. Its totient is φ = 989050298880.

The previous prime is 2211031311109. The next prime is 2211031311121. The reversal of 2211031311112 is 2111131301122.

It is a self number, because there is not a number n which added to its sum of digits gives 2211031311112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2101933 + ... + 2973244.

It is an arithmetic number, because the mean of its divisors is an integer number (71940648150).

Almost surely, 2^{2211031311112} is an apocalyptic number.

It is an amenable number.

2211031311112 is an abundant number, since it is smaller than the sum of its proper divisors (2393170170488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211031311112 is a wasteful number, since it uses less digits than its factorization.

2211031311112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075326 (or 5075322 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 2211031311112 its reverse (2111131301122), we get a palindrome (4322162612234).

The spelling of 2211031311112 in words is "two trillion, two hundred eleven billion, thirty-one million, three hundred eleven thousand, one hundred twelve".