22066801 has 2 divisors, whose sum is σ = 22066802. Its totient is φ = 22066800.

The previous prime is 22066789. The next prime is 22066859. The reversal of 22066801 is 10866022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20466576 + 1600225 = 4524^2 + 1265^2 .

It is a cyclic number.

It is not a de Polignac number, because 22066801 - 2¹¹ = 22064753 is a prime.

It is not a weakly prime, because it can be changed into another prime (22066861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11033400 + 11033401.

It is an arithmetic number, because the mean of its divisors is an integer number (11033401).

Almost surely, 2^22066801 is an apocalyptic number.

It is an amenable number.

22066801 is a deficient number, since it is larger than the sum of its proper divisors (1).

22066801 is an equidigital number, since it uses as much as digits as its factorization.

22066801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 22066801 is about 4697.5313729660. The cubic root of 22066801 is about 280.4872510921.

The spelling of 22066801 in words is "twenty-two million, sixty-six thousand, eight hundred one".