212442426949 has 2 divisors, whose sum is σ = 212442426950. Its totient is φ = 212442426948.

The previous prime is 212442426907. The next prime is 212442426971. The reversal of 212442426949 is 949624244212.

212442426949 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., 167236013025 + 45206413924 = 408945^2 + 212618^2 .

It is a cyclic number.

It is not a de Polignac number, because 212442426949 - 2³⁷ = 75003473477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212442424949) 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, 106221213474 + 106221213475.

It is an arithmetic number, because the mean of its divisors is an integer number (106221213475).

Almost surely, 2^212442426949 is an apocalyptic number.

It is an amenable number.

212442426949 is a deficient number, since it is larger than the sum of its proper divisors (1).

212442426949 is an equidigital number, since it uses as much as digits as its factorization.

212442426949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1990656, while the sum is 49.

The spelling of 212442426949 in words is "two hundred twelve billion, four hundred forty-two million, four hundred twenty-six thousand, nine hundred forty-nine".