212001121049 has 2 divisors, whose sum is σ = 212001121050. Its totient is φ = 212001121048.

The previous prime is 212001121021. The next prime is 212001121051. The reversal of 212001121049 is 940121100212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209283375625 + 2717745424 = 457475^2 + 52132^2 .

It is a cyclic number.

It is not a de Polignac number, because 212001121049 - 2¹² = 212001116953 is a prime.

It is a Sophie Germain prime.

Together with 212001121051, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (212001121949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106000560524 + 106000560525.

It is an arithmetic number, because the mean of its divisors is an integer number (106000560525).

Almost surely, 2^212001121049 is an apocalyptic number.

It is an amenable number.

212001121049 is a deficient number, since it is larger than the sum of its proper divisors (1).

212001121049 is an equidigital number, since it uses as much as digits as its factorization.

212001121049 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 212001121049 in words is "two hundred twelve billion, one million, one hundred twenty-one thousand, forty-nine".