11220112122201 has 12 divisors (see below), whose sum is σ = 16644851016612. Its totient is φ = 7277910565536.

The previous prime is 11220112122181. The next prime is 11220112122209. The reversal of 11220112122201 is 10222121102211.

11220112122201 is a `hidden beast` number, since 1 + 1 + 220 + 11 + 212 + 220 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7706736762201 + 3513375360000 = 2776101^2 + 1874400^2 .

It is not a de Polignac number, because 11220112122201 - 2⁷ = 11220112122073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11220112122209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16847014866 + ... + 16847015531.

It is an arithmetic number, because the mean of its divisors is an integer number (1387070918051).

Almost surely, 2^{11220112122201} is an apocalyptic number.

It is an amenable number.

11220112122201 is a deficient number, since it is larger than the sum of its proper divisors (5424738894411).

11220112122201 is a wasteful number, since it uses less digits than its factorization.

11220112122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33694030440 (or 33694030437 counting only the distinct ones).

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

Adding to 11220112122201 its reverse (10222121102211), we get a palindrome (21442233224412).

The spelling of 11220112122201 in words is "eleven trillion, two hundred twenty billion, one hundred twelve million, one hundred twenty-two thousand, two hundred one".