111200121211222 has 16 divisors (see below), whose sum is σ = 172728526347360. Its totient is φ = 53627870520448.

The previous prime is 111200121211111. The next prime is 111200121211297. The reversal of 111200121211222 is 222112121002111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 111200121211222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981132418 + ... + 981245749.

It is an arithmetic number, because the mean of its divisors is an integer number (10795532896710).

Almost surely, 2^{111200121211222} is an apocalyptic number.

111200121211222 is a deficient number, since it is larger than the sum of its proper divisors (61528405136138).

111200121211222 is a wasteful number, since it uses less digits than its factorization.

111200121211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962379175.

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

Adding to 111200121211222 its reverse (222112121002111), we get a palindrome (333312242213333).

The spelling of 111200121211222 in words is "one hundred eleven trillion, two hundred billion, one hundred twenty-one million, two hundred eleven thousand, two hundred twenty-two".