202200001261 has 2 divisors, whose sum is σ = 202200001262. Its totient is φ = 202200001260.

The previous prime is 202200001231. The next prime is 202200001279. The reversal of 202200001261 is 162100002202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201322716100 + 877285161 = 448690^2 + 29619^2 .

It is a cyclic number.

It is not a de Polignac number, because 202200001261 - 2²⁵ = 202166446829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202200001231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101100000630 + 101100000631.

It is an arithmetic number, because the mean of its divisors is an integer number (101100000631).

Almost surely, 2^202200001261 is an apocalyptic number.

It is an amenable number.

202200001261 is a deficient number, since it is larger than the sum of its proper divisors (1).

202200001261 is an equidigital number, since it uses as much as digits as its factorization.

202200001261 is an evil number, because the sum of its binary digits is even.

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

Adding to 202200001261 its reverse (162100002202), we get a palindrome (364300003463).

The spelling of 202200001261 in words is "two hundred two billion, two hundred million, one thousand, two hundred sixty-one".