22162141 has 2 divisors, whose sum is σ = 22162142. Its totient is φ = 22162140.

The previous prime is 22162139. The next prime is 22162159. The reversal of 22162141 is 14126122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15634116 + 6528025 = 3954^2 + 2555^2 .

It is a cyclic number.

It is not a de Polignac number, because 22162141 - 2¹ = 22162139 is a prime.

Together with 22162139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22162121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11081070 + 11081071.

It is an arithmetic number, because the mean of its divisors is an integer number (11081071).

Almost surely, 2^22162141 is an apocalyptic number.

It is an amenable number.

22162141 is a deficient number, since it is larger than the sum of its proper divisors (1).

22162141 is an equidigital number, since it uses as much as digits as its factorization.

22162141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 22162141 is about 4707.6683188177. The cubic root of 22162141 is about 280.8906207529.

Adding to 22162141 its reverse (14126122), we get a palindrome (36288263).

The spelling of 22162141 in words is "twenty-two million, one hundred sixty-two thousand, one hundred forty-one".