112100221121201 has 4 divisors (see below), whose sum is σ = 112102124118900. Its totient is φ = 112098318123504.

The previous prime is 112100221121173. The next prime is 112100221121209. The reversal of 112100221121201 is 102121122001211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48369521232400 + 63730699888801 = 6954820^2 + 7983151^2 .

It is a cyclic number.

It is not a de Polignac number, because 112100221121201 - 2²⁶ = 112100154012337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112100221121201.

It is not an unprimeable number, because it can be changed into a prime (112100221121209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 951410486 + ... + 951528303.

It is an arithmetic number, because the mean of its divisors is an integer number (28025531029725).

Almost surely, 2^{112100221121201} is an apocalyptic number.

It is an amenable number.

112100221121201 is a deficient number, since it is larger than the sum of its proper divisors (1902997699).

112100221121201 is an equidigital number, since it uses as much as digits as its factorization.

112100221121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902997698.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112100221121201 its reverse (102121122001211), we get a palindrome (214221343122412).

The spelling of 112100221121201 in words is "one hundred twelve trillion, one hundred billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred one".