2201336581 has 2 divisors, whose sum is σ = 2201336582. Its totient is φ = 2201336580.

The previous prime is 2201336537. The next prime is 2201336623. The reversal of 2201336581 is 1856331022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1849774081 + 351562500 = 43009^2 + 18750^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201336581 - 2¹¹ = 2201334533 is a prime.

It is a super-2 number, since 2×2201336581² = 9691765485697539122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201336531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100668290 + 1100668291.

It is an arithmetic number, because the mean of its divisors is an integer number (1100668291).

Almost surely, 2^2201336581 is an apocalyptic number.

It is an amenable number.

2201336581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201336581 is an equidigital number, since it uses as much as digits as its factorization.

2201336581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 2201336581 is about 46918.4034361784. The cubic root of 2201336581 is about 1300.8547792603.

The spelling of 2201336581 in words is "two billion, two hundred one million, three hundred thirty-six thousand, five hundred eighty-one".