2266275821 has 2 divisors, whose sum is σ = 2266275822. Its totient is φ = 2266275820.

The previous prime is 2266275811. The next prime is 2266275833. The reversal of 2266275821 is 1285726622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1965946921 + 300328900 = 44339^2 + 17330^2 .

It is a cyclic number.

It is not a de Polignac number, because 2266275821 - 2¹⁰ = 2266274797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2266275811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1133137910 + 1133137911.

It is an arithmetic number, because the mean of its divisors is an integer number (1133137911).

Almost surely, 2^2266275821 is an apocalyptic number.

It is an amenable number.

2266275821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2266275821 is an equidigital number, since it uses as much as digits as its factorization.

2266275821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 41.

The square root of 2266275821 is about 47605.4179794695. The cubic root of 2266275821 is about 1313.5227177498.

The spelling of 2266275821 in words is "two billion, two hundred sixty-six million, two hundred seventy-five thousand, eight hundred twenty-one".