11222011291 has 2 divisors, whose sum is σ = 11222011292. Its totient is φ = 11222011290.

The previous prime is 11222011289. The next prime is 11222011309. The reversal of 11222011291 is 19211022211.

It is a weak prime.

It is an emirp because it is prime and its reverse (19211022211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11222011291 - 2¹ = 11222011289 is a prime.

Together with 11222011289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11222011201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611005645 + 5611005646.

It is an arithmetic number, because the mean of its divisors is an integer number (5611005646).

Almost surely, 2^11222011291 is an apocalyptic number.

11222011291 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222011291 is an equidigital number, since it uses as much as digits as its factorization.

11222011291 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 11222011291 in words is "eleven billion, two hundred twenty-two million, eleven thousand, two hundred ninety-one".