111122313212 has 6 divisors (see below), whose sum is σ = 194464048128. Its totient is φ = 55561156604.

The previous prime is 111122313199. The next prime is 111122313217. The reversal of 111122313212 is 212313221111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111122313217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13890289148 + ... + 13890289155.

It is an arithmetic number, because the mean of its divisors is an integer number (32410674688).

Almost surely, 2^111122313212 is an apocalyptic number.

It is an amenable number.

111122313212 is a deficient number, since it is larger than the sum of its proper divisors (83341734916).

111122313212 is a wasteful number, since it uses less digits than its factorization.

111122313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27780578307 (or 27780578305 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 111122313212 its reverse (212313221111), we get a palindrome (323435534323).

The spelling of 111122313212 in words is "one hundred eleven billion, one hundred twenty-two million, three hundred thirteen thousand, two hundred twelve".