201221002249 has 2 divisors, whose sum is σ = 201221002250. Its totient is φ = 201221002248.

The previous prime is 201221002219. The next prime is 201221002261. The reversal of 201221002249 is 942200122102.

201221002249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134898271225 + 66322731024 = 367285^2 + 257532^2 .

It is a cyclic number.

It is not a de Polignac number, because 201221002249 - 2⁵ = 201221002217 is a prime.

It is not a weakly prime, because it can be changed into another prime (201221002219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100610501124 + 100610501125.

It is an arithmetic number, because the mean of its divisors is an integer number (100610501125).

Almost surely, 2^201221002249 is an apocalyptic number.

It is an amenable number.

201221002249 is a deficient number, since it is larger than the sum of its proper divisors (1).

201221002249 is an equidigital number, since it uses as much as digits as its factorization.

201221002249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 201221002249 in words is "two hundred one billion, two hundred twenty-one million, two thousand, two hundred forty-nine".