22341661 has 2 divisors, whose sum is σ = 22341662. Its totient is φ = 22341660.

The previous prime is 22341659. The next prime is 22341721. The reversal of 22341661 is 16614322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22033636 + 308025 = 4694^2 + 555^2 .

It is a cyclic number.

It is not a de Polignac number, because 22341661 - 2¹ = 22341659 is a prime.

Together with 22341659, 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 (22341161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11170830 + 11170831.

It is an arithmetic number, because the mean of its divisors is an integer number (11170831).

Almost surely, 2^22341661 is an apocalyptic number.

It is an amenable number.

22341661 is a deficient number, since it is larger than the sum of its proper divisors (1).

22341661 is an equidigital number, since it uses as much as digits as its factorization.

22341661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 25.

The square root of 22341661 is about 4726.6966266093. The cubic root of 22341661 is about 281.6470148788.

Adding to 22341661 its reverse (16614322), we get a palindrome (38955983).

The spelling of 22341661 in words is "twenty-two million, three hundred forty-one thousand, six hundred sixty-one".