22101101161 has 2 divisors, whose sum is σ = 22101101162. Its totient is φ = 22101101160.

The previous prime is 22101101159. The next prime is 22101101233. The reversal of 22101101161 is 16110110122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22092363225 + 8737936 = 148635^2 + 2956^2 .

It is a cyclic number.

It is not a de Polignac number, because 22101101161 - 2¹ = 22101101159 is a prime.

Together with 22101101159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22101101461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050550580 + 11050550581.

It is an arithmetic number, because the mean of its divisors is an integer number (11050550581).

Almost surely, 2^22101101161 is an apocalyptic number.

It is an amenable number.

22101101161 is a deficient number, since it is larger than the sum of its proper divisors (1).

22101101161 is an equidigital number, since it uses as much as digits as its factorization.

22101101161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 22101101161 its reverse (16110110122), we get a palindrome (38211211283).

The spelling of 22101101161 in words is "twenty-two billion, one hundred one million, one hundred one thousand, one hundred sixty-one".