111122011101212 has 6 divisors (see below), whose sum is σ = 194463519427128. Its totient is φ = 55561005550604.

The previous prime is 111122011101181. The next prime is 111122011101229. The reversal of 111122011101212 is 212101110221111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13890251387648 + ... + 13890251387655.

It is an arithmetic number, because the mean of its divisors is an integer number (32410586571188).

Almost surely, 2^{111122011101212} is an apocalyptic number.

It is an amenable number.

111122011101212 is a deficient number, since it is larger than the sum of its proper divisors (83341508325916).

111122011101212 is a wasteful number, since it uses less digits than its factorization.

111122011101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27780502775307 (or 27780502775305 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111122011101212 its reverse (212101110221111), we get a palindrome (323223121322323).

The spelling of 111122011101212 in words is "one hundred eleven trillion, one hundred twenty-two billion, eleven million, one hundred one thousand, two hundred twelve".