2266503221 has 2 divisors, whose sum is σ = 2266503222. Its totient is φ = 2266503220.

The previous prime is 2266503209. The next prime is 2266503227. The reversal of 2266503221 is 1223056622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1904362321 + 362140900 = 43639^2 + 19030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2266503221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2266503227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1133251610 + 1133251611.

It is an arithmetic number, because the mean of its divisors is an integer number (1133251611).

Almost surely, 2^2266503221 is an apocalyptic number.

It is an amenable number.

2266503221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2266503221 is an equidigital number, since it uses as much as digits as its factorization.

2266503221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 2266503221 is about 47607.8063031684. The cubic root of 2266503221 is about 1313.5666496009.

Adding to 2266503221 its reverse (1223056622), we get a palindrome (3489559843).

The spelling of 2266503221 in words is "two billion, two hundred sixty-six million, five hundred three thousand, two hundred twenty-one".