212021120449 has 2 divisors, whose sum is σ = 212021120450. Its totient is φ = 212021120448.

The previous prime is 212021120417. The next prime is 212021120471. The reversal of 212021120449 is 944021120212.

212021120449 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., 201336177025 + 10684943424 = 448705^2 + 103368^2 .

It is a cyclic number.

It is not a de Polignac number, because 212021120449 - 2⁵ = 212021120417 is a prime.

It is not a weakly prime, because it can be changed into another prime (212021120249) 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, 106010560224 + 106010560225.

It is an arithmetic number, because the mean of its divisors is an integer number (106010560225).

Almost surely, 2^212021120449 is an apocalyptic number.

It is an amenable number.

212021120449 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021120449 is an equidigital number, since it uses as much as digits as its factorization.

212021120449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 212021120449 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand, four hundred forty-nine".