11201200221091 has 2 divisors, whose sum is σ = 11201200221092. Its totient is φ = 11201200221090.

The previous prime is 11201200221089. The next prime is 11201200221161. The reversal of 11201200221091 is 19012200210211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11201200221091 - 2¹ = 11201200221089 is a prime.

Together with 11201200221089, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11201200221691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600600110545 + 5600600110546.

It is an arithmetic number, because the mean of its divisors is an integer number (5600600110546).

Almost surely, 2^{11201200221091} is an apocalyptic number.

11201200221091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201200221091 is an equidigital number, since it uses as much as digits as its factorization.

11201200221091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 11201200221091 in words is "eleven trillion, two hundred one billion, two hundred million, two hundred twenty-one thousand, ninety-one".