11112202112201 has 4 divisors (see below), whose sum is σ = 11294369360004. Its totient is φ = 10930034864400.

The previous prime is 11112202112149. The next prime is 11112202112203. The reversal of 11112202112201 is 10221120221111.

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 5055932131600 + 6056269980601 = 2248540^2 + 2460949^2 .

It is a cyclic number.

It is not a de Polignac number, because 11112202112201 - 2²² = 11112197917897 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 11112202112201.

It is not an unprimeable number, because it can be changed into a prime (11112202112203) 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, 91083623810 + ... + 91083623931.

It is an arithmetic number, because the mean of its divisors is an integer number (2823592340001).

Almost surely, 2^{11112202112201} is an apocalyptic number.

It is an amenable number.

11112202112201 is a deficient number, since it is larger than the sum of its proper divisors (182167247803).

11112202112201 is an equidigital number, since it uses as much as digits as its factorization.

11112202112201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182167247802.

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

Adding to 11112202112201 its reverse (10221120221111), we get a palindrome (21333322333312).

The spelling of 11112202112201 in words is "eleven trillion, one hundred twelve billion, two hundred two million, one hundred twelve thousand, two hundred one".