2226100561 has 2 divisors, whose sum is σ = 2226100562. Its totient is φ = 2226100560.

The previous prime is 2226100549. The next prime is 2226100567. The reversal of 2226100561 is 1650016222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1142440000 + 1083660561 = 33800^2 + 32919^2 .

It is a cyclic number.

It is not a de Polignac number, because 2226100561 - 2²³ = 2217711953 is a prime.

It is not a weakly prime, because it can be changed into another prime (2226100567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1113050280 + 1113050281.

It is an arithmetic number, because the mean of its divisors is an integer number (1113050281).

Almost surely, 2^2226100561 is an apocalyptic number.

It is an amenable number.

2226100561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2226100561 is an equidigital number, since it uses as much as digits as its factorization.

2226100561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2226100561 is about 47181.5701413168. The cubic root of 2226100561 is about 1305.7145983250.

Adding to 2226100561 its reverse (1650016222), we get a palindrome (3876116783).

The spelling of 2226100561 in words is "two billion, two hundred twenty-six million, one hundred thousand, five hundred sixty-one".