22010000161 has 2 divisors, whose sum is σ = 22010000162. Its totient is φ = 22010000160.

The previous prime is 22010000143. The next prime is 22010000171. The reversal of 22010000161 is 16100001022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16837657600 + 5172342561 = 129760^2 + 71919^2 .

It is a cyclic number.

It is not a de Polignac number, because 22010000161 - 2²³ = 22001611553 is a prime.

It is not a weakly prime, because it can be changed into another prime (22010000171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11005000080 + 11005000081.

It is an arithmetic number, because the mean of its divisors is an integer number (11005000081).

Almost surely, 2^22010000161 is an apocalyptic number.

It is an amenable number.

22010000161 is a deficient number, since it is larger than the sum of its proper divisors (1).

22010000161 is an equidigital number, since it uses as much as digits as its factorization.

22010000161 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 13.

Adding to 22010000161 its reverse (16100001022), we get a palindrome (38110001183).

The spelling of 22010000161 in words is "twenty-two billion, ten million, one hundred sixty-one", and thus it is an aban number.