22241861 has 2 divisors, whose sum is σ = 22241862. Its totient is φ = 22241860.

The previous prime is 22241827. The next prime is 22241893. The reversal of 22241861 is 16814222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14485636 + 7756225 = 3806^2 + 2785^2 .

It is a cyclic number.

It is not a de Polignac number, because 22241861 - 2¹⁸ = 21979717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22241861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22241801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11120930 + 11120931.

It is an arithmetic number, because the mean of its divisors is an integer number (11120931).

Almost surely, 2^22241861 is an apocalyptic number.

It is an amenable number.

22241861 is a deficient number, since it is larger than the sum of its proper divisors (1).

22241861 is an equidigital number, since it uses as much as digits as its factorization.

22241861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 26.

The square root of 22241861 is about 4716.1277548429. The cubic root of 22241861 is about 281.2270173154.

The spelling of 22241861 in words is "twenty-two million, two hundred forty-one thousand, eight hundred sixty-one".