22001211191 has 2 divisors, whose sum is σ = 22001211192. Its totient is φ = 22001211190.

The previous prime is 22001211179. The next prime is 22001211217. The reversal of 22001211191 is 19111210022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22001211191 - 2³⁴ = 4821342007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22001211161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000605595 + 11000605596.

It is an arithmetic number, because the mean of its divisors is an integer number (11000605596).

Almost surely, 2^22001211191 is an apocalyptic number.

22001211191 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001211191 is an equidigital number, since it uses as much as digits as its factorization.

22001211191 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 20.

The spelling of 22001211191 in words is "twenty-two billion, one million, two hundred eleven thousand, one hundred ninety-one".