11211201122189 has 2 divisors, whose sum is σ = 11211201122190. Its totient is φ = 11211201122188.

The previous prime is 11211201122137. The next prime is 11211201122227. The reversal of 11211201122189 is 98122110211211.

11211201122189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5879373766564 + 5331827355625 = 2424742^2 + 2309075^2 .

It is an emirp because it is prime and its reverse (98122110211211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11211201122189 - 2¹² = 11211201118093 is a prime.

It is a super-4 number, since 4×11211201122189⁴ (a number of 53 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211201122129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605600561094 + 5605600561095.

It is an arithmetic number, because the mean of its divisors is an integer number (5605600561095).

Almost surely, 2^{11211201122189} is an apocalyptic number.

It is an amenable number.

11211201122189 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211201122189 is an equidigital number, since it uses as much as digits as its factorization.

11211201122189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 32.

The spelling of 11211201122189 in words is "eleven trillion, two hundred eleven billion, two hundred one million, one hundred twenty-two thousand, one hundred eighty-nine".