201211001000249 has 2 divisors, whose sum is σ = 201211001000250. Its totient is φ = 201211001000248.

The previous prime is 201211001000201. The next prime is 201211001000267. The reversal of 201211001000249 is 942000100112102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168064129242025 + 33146871758224 = 12963955^2 + 5757332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201211001000249 is a prime.

It is not a weakly prime, because it can be changed into another prime (201211001000279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100605500500124 + 100605500500125.

It is an arithmetic number, because the mean of its divisors is an integer number (100605500500125).

Almost surely, 2^{201211001000249} is an apocalyptic number.

It is an amenable number.

201211001000249 is a deficient number, since it is larger than the sum of its proper divisors (1).

201211001000249 is an equidigital number, since it uses as much as digits as its factorization.

201211001000249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 201211001000249 in words is "two hundred one trillion, two hundred eleven billion, one million, two hundred forty-nine", and thus it is an aban number.