111221022112012 has 24 divisors (see below), whose sum is σ = 194658661360800. Its totient is φ = 55604262126336.

The previous prime is 111221022112007. The next prime is 111221022112051. The reversal of 111221022112012 is 210211220122111.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2419982289 + ... + 2420028247.

It is an arithmetic number, because the mean of its divisors is an integer number (8110777556700).

Almost surely, 2^{111221022112012} is an apocalyptic number.

It is an amenable number.

111221022112012 is a deficient number, since it is larger than the sum of its proper divisors (83437639248788).

111221022112012 is a wasteful number, since it uses less digits than its factorization.

111221022112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100785 (or 100783 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111221022112012 its reverse (210211220122111), we get a palindrome (321432242234123).

The spelling of 111221022112012 in words is "one hundred eleven trillion, two hundred twenty-one billion, twenty-two million, one hundred twelve thousand, twelve".