210210121210049 has 2 divisors, whose sum is σ = 210210121210050. Its totient is φ = 210210121210048.

The previous prime is 210210121210007. The next prime is 210210121210121. The reversal of 210210121210049 is 940012121012012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 176682049152400 + 33528072057649 = 13292180^2 + 5790343^2 .

It is a cyclic number.

It is not a de Polignac number, because 210210121210049 - 2⁸ = 210210121209793 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (210210121210549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105105060605024 + 105105060605025.

It is an arithmetic number, because the mean of its divisors is an integer number (105105060605025).

Almost surely, 2^{210210121210049} is an apocalyptic number.

It is an amenable number.

210210121210049 is a deficient number, since it is larger than the sum of its proper divisors (1).

210210121210049 is an equidigital number, since it uses as much as digits as its factorization.

210210121210049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 210210121210049 in words is "two hundred ten trillion, two hundred ten billion, one hundred twenty-one million, two hundred ten thousand, forty-nine".