212426771 has 2 divisors, whose sum is σ = 212426772. Its totient is φ = 212426770.

The previous prime is 212426761. The next prime is 212426789. The reversal of 212426771 is 177624212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212426771 - 2¹⁰ = 212425747 is a prime.

It is not a weakly prime, because it can be changed into another prime (212426701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106213385 + 106213386.

It is an arithmetic number, because the mean of its divisors is an integer number (106213386).

Almost surely, 2^212426771 is an apocalyptic number.

212426771 is a deficient number, since it is larger than the sum of its proper divisors (1).

212426771 is an equidigital number, since it uses as much as digits as its factorization.

212426771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 32.

The square root of 212426771 is about 14574.8677867074. The cubic root of 212426771 is about 596.6730409661.

The spelling of 212426771 in words is "two hundred twelve million, four hundred twenty-six thousand, seven hundred seventy-one".