22032161 has 2 divisors, whose sum is σ = 22032162. Its totient is φ = 22032160.

The previous prime is 22032149. The next prime is 22032167. The reversal of 22032161 is 16123022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15555136 + 6477025 = 3944^2 + 2545^2 .

It is a cyclic number.

It is not a de Polignac number, because 22032161 - 2⁶ = 22032097 is a prime.

It is a super-2 number, since 2×22032161² = 970832236659842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22032167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11016080 + 11016081.

It is an arithmetic number, because the mean of its divisors is an integer number (11016081).

Almost surely, 2^22032161 is an apocalyptic number.

It is an amenable number.

22032161 is a deficient number, since it is larger than the sum of its proper divisors (1).

22032161 is an equidigital number, since it uses as much as digits as its factorization.

22032161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 22032161 is about 4693.8428819039. The cubic root of 22032161 is about 280.3404065654.

Adding to 22032161 its reverse (16123022), we get a palindrome (38155183).

The spelling of 22032161 in words is "twenty-two million, thirty-two thousand, one hundred sixty-one".