12001001200061 has 2 divisors, whose sum is σ = 12001001200062. Its totient is φ = 12001001200060.

The previous prime is 12001001199991. The next prime is 12001001200087. The reversal of 12001001200061 is 16000210010021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10059490588900 + 1941510611161 = 3171670^2 + 1393381^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12001001200061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001001200091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000500600030 + 6000500600031.

It is an arithmetic number, because the mean of its divisors is an integer number (6000500600031).

Almost surely, 2^{12001001200061} is an apocalyptic number.

It is an amenable number.

12001001200061 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001001200061 is an equidigital number, since it uses as much as digits as its factorization.

12001001200061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12001001200061 its reverse (16000210010021), we get a palindrome (28001211210082).

The spelling of 12001001200061 in words is "twelve trillion, one billion, one million, two hundred thousand, sixty-one".