2601026221 has 2 divisors, whose sum is σ = 2601026222. Its totient is φ = 2601026220.

The previous prime is 2601026209. The next prime is 2601026227. The reversal of 2601026221 is 1226201062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2493903721 + 107122500 = 49939^2 + 10350^2 .

It is a cyclic number.

It is not a de Polignac number, because 2601026221 - 2¹³ = 2601018029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2601026192 and 2601026201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2601026227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1300513110 + 1300513111.

It is an arithmetic number, because the mean of its divisors is an integer number (1300513111).

Almost surely, 2^2601026221 is an apocalyptic number.

It is an amenable number.

2601026221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2601026221 is an equidigital number, since it uses as much as digits as its factorization.

2601026221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2601026221 is about 51000.2570679796. The cubic root of 2601026221 is about 1375.2497566807.

Adding to 2601026221 its reverse (1226201062), we get a palindrome (3827227283).

The spelling of 2601026221 in words is "two billion, six hundred one million, twenty-six thousand, two hundred twenty-one".