22111112121201 has 8 divisors (see below), whose sum is σ = 32757203142560. Its totient is φ = 14740741414116.

The previous prime is 22111112121191. The next prime is 22111112121221. The reversal of 22111112121201 is 10212121111122.

It is a happy number.

22111112121201 is a `hidden beast` number, since 221 + 1 + 111 + 212 + 120 + 1 = 666.

It is not a de Polignac number, because 22111112121201 - 2¹⁴ = 22111112104817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111112121221) by changing a digit.

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, 409465039255 + ... + 409465039308.

It is an arithmetic number, because the mean of its divisors is an integer number (4094650392820).

Almost surely, 2^{22111112121201} is an apocalyptic number.

It is an amenable number.

22111112121201 is a deficient number, since it is larger than the sum of its proper divisors (10646091021359).

22111112121201 is an equidigital number, since it uses as much as digits as its factorization.

22111112121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818930078572 (or 818930078566 counting only the distinct ones).

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

Adding to 22111112121201 its reverse (10212121111122), we get a palindrome (32323233232323).

The spelling of 22111112121201 in words is "twenty-two trillion, one hundred eleven billion, one hundred twelve million, one hundred twenty-one thousand, two hundred one".