11331312111212 has 12 divisors (see below), whose sum is σ = 19831459433016. Its totient is φ = 5665180844640.

The previous prime is 11331312111191. The next prime is 11331312111253. The reversal of 11331312111212 is 21211121313311.

11331312111212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11331312111212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118749089 + ... + 118844472.

It is an arithmetic number, because the mean of its divisors is an integer number (1652621619418).

Almost surely, 2^{11331312111212} is an apocalyptic number.

It is an amenable number.

11331312111212 is a deficient number, since it is larger than the sum of its proper divisors (8500147321804).

11331312111212 is a wasteful number, since it uses less digits than its factorization.

11331312111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237605488 (or 237605486 counting only the distinct ones).

The product of its digits is 216, while the sum is 23.

Adding to 11331312111212 its reverse (21211121313311), we get a palindrome (32542433424523).

The spelling of 11331312111212 in words is "eleven trillion, three hundred thirty-one billion, three hundred twelve million, one hundred eleven thousand, two hundred twelve".