12100101200261 has 2 divisors, whose sum is σ = 12100101200262. Its totient is φ = 12100101200260.

The previous prime is 12100101200237. The next prime is 12100101200287. The reversal of 12100101200261 is 16200210100121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11956000485025 + 144100715236 = 3457745^2 + 379606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12100101200261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12100101203261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050050600130 + 6050050600131.

It is an arithmetic number, because the mean of its divisors is an integer number (6050050600131).

Almost surely, 2^{12100101200261} is an apocalyptic number.

It is an amenable number.

12100101200261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100101200261 is an equidigital number, since it uses as much as digits as its factorization.

12100101200261 is an evil number, because the sum of its binary digits is even.

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

Adding to 12100101200261 its reverse (16200210100121), we get a palindrome (28300311300382).

The spelling of 12100101200261 in words is "twelve trillion, one hundred billion, one hundred one million, two hundred thousand, two hundred sixty-one".