11422197021889 has 2 divisors, whose sum is σ = 11422197021890. Its totient is φ = 11422197021888.

The previous prime is 11422197021847. The next prime is 11422197021899. The reversal of 11422197021889 is 98812079122411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7001236620225 + 4420960401664 = 2645985^2 + 2102608^2 .

It is a cyclic number.

It is not a de Polignac number, because 11422197021889 - 2³⁷ = 11284758068417 is a prime.

It is not a weakly prime, because it can be changed into another prime (11422197021899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5711098510944 + 5711098510945.

It is an arithmetic number, because the mean of its divisors is an integer number (5711098510945).

Almost surely, 2^{11422197021889} is an apocalyptic number.

It is an amenable number.

11422197021889 is a deficient number, since it is larger than the sum of its proper divisors (1).

11422197021889 is an equidigital number, since it uses as much as digits as its factorization.

11422197021889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 55.

The spelling of 11422197021889 in words is "eleven trillion, four hundred twenty-two billion, one hundred ninety-seven million, twenty-one thousand, eight hundred eighty-nine".