111122001212012 has 48 divisors (see below), whose sum is σ = 231910187077632. Its totient is φ = 45552450271680.

The previous prime is 111122001212009. The next prime is 111122001212051. The reversal of 111122001212012 is 210212100221111.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43920938 + ... + 46382030.

It is an arithmetic number, because the mean of its divisors is an integer number (4831462230784).

Almost surely, 2^{111122001212012} is an apocalyptic number.

It is an amenable number.

111122001212012 is an abundant number, since it is smaller than the sum of its proper divisors (120788185865620).

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

111122001212012 is a wasteful number, since it uses less digits than its factorization.

111122001212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531238 (or 2531236 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111122001212012 its reverse (210212100221111), we get a palindrome (321334101433123).

Subtracting 111122001212012 from its reverse (210212100221111), we obtain a palindrome (99090099009099).

The spelling of 111122001212012 in words is "one hundred eleven trillion, one hundred twenty-two billion, one million, two hundred twelve thousand, twelve".