2206744261 has 2 divisors, whose sum is σ = 2206744262. Its totient is φ = 2206744260.

The previous prime is 2206744259. The next prime is 2206744273. The reversal of 2206744261 is 1624476022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2206650625 + 93636 = 46975^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 2206744261 - 2¹ = 2206744259 is a prime.

It is a super-2 number, since 2×2206744261² = 9739440466912872242, which contains 22 as substring.

Together with 2206744259, 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 (2206744201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1103372130 + 1103372131.

It is an arithmetic number, because the mean of its divisors is an integer number (1103372131).

Almost surely, 2^2206744261 is an apocalyptic number.

It is an amenable number.

2206744261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2206744261 is an equidigital number, since it uses as much as digits as its factorization.

2206744261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 2206744261 is about 46975.9966472240. The cubic root of 2206744261 is about 1301.9191105108.

The spelling of 2206744261 in words is "two billion, two hundred six million, seven hundred forty-four thousand, two hundred sixty-one".