11422197021847 has 2 divisors, whose sum is σ = 11422197021848. Its totient is φ = 11422197021846.

The previous prime is 11422197021827. The next prime is 11422197021889. The reversal of 11422197021847 is 74812079122411.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11422197021847 - 2¹⁵ = 11422196989079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11422197021847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11422197021827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711098510923 + 5711098510924.

It is an arithmetic number, because the mean of its divisors is an integer number (5711098510924).

Almost surely, 2^{11422197021847} is an apocalyptic number.

11422197021847 is a deficient number, since it is larger than the sum of its proper divisors (1).

11422197021847 is an equidigital number, since it uses as much as digits as its factorization.

11422197021847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 49.

The spelling of 11422197021847 in words is "eleven trillion, four hundred twenty-two billion, one hundred ninety-seven million, twenty-one thousand, eight hundred forty-seven".