202201261 has 2 divisors, whose sum is σ = 202201262. Its totient is φ = 202201260.

The previous prime is 202201199. The next prime is 202201267. The reversal of 202201261 is 162102202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198979236 + 3222025 = 14106^2 + 1795^2 .

It is a cyclic number.

It is not a de Polignac number, because 202201261 - 2⁷ = 202201133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202201267) 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, 101100630 + 101100631.

It is an arithmetic number, because the mean of its divisors is an integer number (101100631).

Almost surely, 2^202201261 is an apocalyptic number.

It is an amenable number.

202201261 is a deficient number, since it is larger than the sum of its proper divisors (1).

202201261 is an equidigital number, since it uses as much as digits as its factorization.

202201261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 202201261 is about 14219.7489780938. The cubic root of 202201261 is about 586.9412327850.

Adding to 202201261 its reverse (162102202), we get a palindrome (364303463).

The spelling of 202201261 in words is "two hundred two million, two hundred one thousand, two hundred sixty-one".