201312220012249 has 2 divisors, whose sum is σ = 201312220012250. Its totient is φ = 201312220012248.

The previous prime is 201312220012223. The next prime is 201312220012307. The reversal of 201312220012249 is 942210022213102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201127904349849 + 184315662400 = 14181957^2 + 429320^2 .

It is a cyclic number.

It is not a de Polignac number, because 201312220012249 - 2⁷ = 201312220012121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201312220012249.

It is not a weakly prime, because it can be changed into another prime (201312220082249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100656110006124 + 100656110006125.

It is an arithmetic number, because the mean of its divisors is an integer number (100656110006125).

Almost surely, 2^{201312220012249} is an apocalyptic number.

It is an amenable number.

201312220012249 is a deficient number, since it is larger than the sum of its proper divisors (1).

201312220012249 is an equidigital number, since it uses as much as digits as its factorization.

201312220012249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 201312220012249 in words is "two hundred one trillion, three hundred twelve billion, two hundred twenty million, twelve thousand, two hundred forty-nine".