11201201121091 has 2 divisors, whose sum is σ = 11201201121092. Its totient is φ = 11201201121090.

The previous prime is 11201201121083. The next prime is 11201201121101. The reversal of 11201201121091 is 19012110210211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11201201121091 - 2³ = 11201201121083 is a prime.

It is not a weakly prime, because it can be changed into another prime (11201201121001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600600560545 + 5600600560546.

It is an arithmetic number, because the mean of its divisors is an integer number (5600600560546).

Almost surely, 2^{11201201121091} is an apocalyptic number.

11201201121091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201201121091 is an equidigital number, since it uses as much as digits as its factorization.

11201201121091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 11201201121091 in words is "eleven trillion, two hundred one billion, two hundred one million, one hundred twenty-one thousand, ninety-one".