2101200212249 has 2 divisors, whose sum is σ = 2101200212250. Its totient is φ = 2101200212248.

The previous prime is 2101200212213. The next prime is 2101200212297. The reversal of 2101200212249 is 9422120021012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2047703760400 + 53496451849 = 1430980^2 + 231293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101200212249 is a prime.

It is not a weakly prime, because it can be changed into another prime (2104200212249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050600106124 + 1050600106125.

It is an arithmetic number, because the mean of its divisors is an integer number (1050600106125).

Almost surely, 2^{2101200212249} is an apocalyptic number.

It is an amenable number.

2101200212249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101200212249 is an equidigital number, since it uses as much as digits as its factorization.

2101200212249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 2101200212249 in words is "two trillion, one hundred one billion, two hundred million, two hundred twelve thousand, two hundred forty-nine".