12260205542261 has 8 divisors (see below), whose sum is σ = 12373056108600. Its totient is φ = 12147361732800.

The previous prime is 12260205542201. The next prime is 12260205542279. The reversal of 12260205542261 is 16224550206221.

It can be written as a sum of positive squares in 4 ways, for example, as 1237845382225 + 11022360160036 = 1112585^2 + 3319994^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12260205542261 - 2⁶ = 12260205542197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12260205542201) 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 in 7 ways as a sum of consecutive naturals, for example, 1993211 + ... + 5337911.

It is an arithmetic number, because the mean of its divisors is an integer number (1546632013575).

Almost surely, 2^{12260205542261} is an apocalyptic number.

It is an amenable number.

12260205542261 is a deficient number, since it is larger than the sum of its proper divisors (112850566339).

12260205542261 is a wasteful number, since it uses less digits than its factorization.

12260205542261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378439.

The product of its (nonzero) digits is 115200, while the sum is 38.

Adding to 12260205542261 its reverse (16224550206221), we get a palindrome (28484755748482).

The spelling of 12260205542261 in words is "twelve trillion, two hundred sixty billion, two hundred five million, five hundred forty-two thousand, two hundred sixty-one".