112221201220111 has 4 divisors (see below), whose sum is σ = 112224413173000. Its totient is φ = 112217989267224.

The previous prime is 112221201219989. The next prime is 112221201220129. The reversal of 112221201220111 is 111022102122211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112221201220111 - 2⁴⁵ = 77036829131279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221271220111) 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 3 ways as a sum of consecutive naturals, for example, 1605924036 + ... + 1605993913.

It is an arithmetic number, because the mean of its divisors is an integer number (28056103293250).

Almost surely, 2^{112221201220111} is an apocalyptic number.

112221201220111 is a deficient number, since it is larger than the sum of its proper divisors (3211952889).

112221201220111 is an equidigital number, since it uses as much as digits as its factorization.

112221201220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211952888.

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

Adding to 112221201220111 its reverse (111022102122211), we get a palindrome (223243303342322).

The spelling of 112221201220111 in words is "one hundred twelve trillion, two hundred twenty-one billion, two hundred one million, two hundred twenty thousand, one hundred eleven".