402200000261 has 2 divisors, whose sum is σ = 402200000262. Its totient is φ = 402200000260.

The previous prime is 402200000243. The next prime is 402200000317. The reversal of 402200000261 is 162000002204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223723324036 + 178476676225 = 472994^2 + 422465^2 .

It is a cyclic number.

It is not a de Polignac number, because 402200000261 - 2¹⁰ = 402199999237 is a prime.

It is a super-3 number, since 3×402200000261³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402200000161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201100000130 + 201100000131.

It is an arithmetic number, because the mean of its divisors is an integer number (201100000131).

Almost surely, 2^402200000261 is an apocalyptic number.

It is an amenable number.

402200000261 is a deficient number, since it is larger than the sum of its proper divisors (1).

402200000261 is an equidigital number, since it uses as much as digits as its factorization.

402200000261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 402200000261 its reverse (162000002204), we get a palindrome (564200002465).

The spelling of 402200000261 in words is "four hundred two billion, two hundred million, two hundred sixty-one", and thus it is an aban number.