111222210012201 has 8 divisors (see below), whose sum is σ = 164773644462560. Its totient is φ = 74148140008116.

The previous prime is 111222210012191. The next prime is 111222210012239. The reversal of 111222210012201 is 102210012222111.

111222210012201 is a `hidden beast` number, since 1 + 11 + 222 + 210 + 0 + 1 + 220 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-111222210012201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111222210052201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2059670555755 + ... + 2059670555808.

It is an arithmetic number, because the mean of its divisors is an integer number (20596705557820).

Almost surely, 2^{111222210012201} is an apocalyptic number.

It is an amenable number.

111222210012201 is a deficient number, since it is larger than the sum of its proper divisors (53551434450359).

111222210012201 is an equidigital number, since it uses as much as digits as its factorization.

111222210012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4119341111572 (or 4119341111566 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111222210012201 its reverse (102210012222111), we get a palindrome (213432222234312).

The spelling of 111222210012201 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred ten million, twelve thousand, two hundred one".