11120211102181 has 2 divisors, whose sum is σ = 11120211102182. Its totient is φ = 11120211102180.

The previous prime is 11120211102167. The next prime is 11120211102223. The reversal of 11120211102181 is 18120111202111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6908854540900 + 4211356561281 = 2628470^2 + 2052159^2 .

It is a cyclic number.

It is not a de Polignac number, because 11120211102181 - 2¹⁹ = 11120210577893 is a prime.

It is a super-4 number, since 4×11120211102181⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11120211172181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560105551090 + 5560105551091.

It is an arithmetic number, because the mean of its divisors is an integer number (5560105551091).

Almost surely, 2^{11120211102181} is an apocalyptic number.

It is an amenable number.

11120211102181 is a deficient number, since it is larger than the sum of its proper divisors (1).

11120211102181 is an equidigital number, since it uses as much as digits as its factorization.

11120211102181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 22.

Adding to 11120211102181 its reverse (18120111202111), we get a palindrome (29240322304292).

The spelling of 11120211102181 in words is "eleven trillion, one hundred twenty billion, two hundred eleven million, one hundred two thousand, one hundred eighty-one".