11220122222201 has 4 divisors (see below), whose sum is σ = 11221762358004. Its totient is φ = 11218482086400.

The previous prime is 11220122222117. The next prime is 11220122222209. The reversal of 11220122222201 is 10222222102211.

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 10224166125625 + 995956096576 = 3197525^2 + 997976^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11220122222201 is a prime.

It is a super-2 number, since 2×11220122222201² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220122222209) 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 3 ways as a sum of consecutive naturals, for example, 820057640 + ... + 820071321.

It is an arithmetic number, because the mean of its divisors is an integer number (2805440589501).

Almost surely, 2^{11220122222201} is an apocalyptic number.

It is an amenable number.

11220122222201 is a deficient number, since it is larger than the sum of its proper divisors (1640135803).

11220122222201 is an equidigital number, since it uses as much as digits as its factorization.

11220122222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640135802.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11220122222201 its reverse (10222222102211), we get a palindrome (21442344324412).

The spelling of 11220122222201 in words is "eleven trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred one".