102201110261 has 2 divisors, whose sum is σ = 102201110262. Its totient is φ = 102201110260.

The previous prime is 102201110237. The next prime is 102201110303. The reversal of 102201110261 is 162011102201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91064529361 + 11136580900 = 301769^2 + 105530^2 .

It is a cyclic number.

It is not a de Polignac number, because 102201110261 - 2¹⁴ = 102201093877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102201190261) 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, 51100555130 + 51100555131.

It is an arithmetic number, because the mean of its divisors is an integer number (51100555131).

Almost surely, 2^102201110261 is an apocalyptic number.

It is an amenable number.

102201110261 is a deficient number, since it is larger than the sum of its proper divisors (1).

102201110261 is an equidigital number, since it uses as much as digits as its factorization.

102201110261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 102201110261 its reverse (162011102201), we get a palindrome (264212212462).

The spelling of 102201110261 in words is "one hundred two billion, two hundred one million, one hundred ten thousand, two hundred sixty-one".