22242061 has 2 divisors, whose sum is σ = 22242062. Its totient is φ = 22242060.

The previous prime is 22242047. The next prime is 22242071. The reversal of 22242061 is 16024222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18748900 + 3493161 = 4330^2 + 1869^2 .

It is a cyclic number.

It is not a de Polignac number, because 22242061 - 2¹⁷ = 22110989 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22242071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11121030 + 11121031.

It is an arithmetic number, because the mean of its divisors is an integer number (11121031).

Almost surely, 2^22242061 is an apocalyptic number.

It is an amenable number.

22242061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22242061 is an equidigital number, since it uses as much as digits as its factorization.

22242061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 22242061 is about 4716.1489586314. The cubic root of 22242061 is about 281.2278602490.

Adding to 22242061 its reverse (16024222), we get a palindrome (38266283).

The spelling of 22242061 in words is "twenty-two million, two hundred forty-two thousand, sixty-one".