22031121163 has 2 divisors, whose sum is σ = 22031121164. Its totient is φ = 22031121162.

The previous prime is 22031121149. The next prime is 22031121209. The reversal of 22031121163 is 36112113022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22031121163 - 2²¹ = 22029024011 is a prime.

It is not a weakly prime, because it can be changed into another prime (22031121103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11015560581 + 11015560582.

It is an arithmetic number, because the mean of its divisors is an integer number (11015560582).

Almost surely, 2^22031121163 is an apocalyptic number.

22031121163 is a deficient number, since it is larger than the sum of its proper divisors (1).

22031121163 is an equidigital number, since it uses as much as digits as its factorization.

22031121163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 22031121163 its reverse (36112113022), we get a palindrome (58143234185).

The spelling of 22031121163 in words is "twenty-two billion, thirty-one million, one hundred twenty-one thousand, one hundred sixty-three".