111012221211201 has 48 divisors (see below), whose sum is σ = 166436566732800. Its totient is φ = 73942891527888.

The previous prime is 111012221211191. The next prime is 111012221211223. The reversal of 111012221211201 is 102112122210111.

It is a happy number.

111012221211201 is a `hidden beast` number, since 1 + 110 + 122 + 21 + 211 + 201 = 666.

It is not a de Polignac number, because 111012221211201 - 2⁶ = 111012221211137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111012221211271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3887104360 + ... + 3887132918.

It is an arithmetic number, because the mean of its divisors is an integer number (3467428473600).

Almost surely, 2^{111012221211201} is an apocalyptic number.

It is an amenable number.

111012221211201 is a deficient number, since it is larger than the sum of its proper divisors (55424345521599).

111012221211201 is a wasteful number, since it uses less digits than its factorization.

111012221211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42120 (or 42108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111012221211201 its reverse (102112122210111), we get a palindrome (213124343421312).

The spelling of 111012221211201 in words is "one hundred eleven trillion, twelve billion, two hundred twenty-one million, two hundred eleven thousand, two hundred one".