212213332291 has 2 divisors, whose sum is σ = 212213332292. Its totient is φ = 212213332290.

The previous prime is 212213332273. The next prime is 212213332337. The reversal of 212213332291 is 192233312212.

212213332291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212213332291 - 2²⁹ = 211676461379 is a prime.

It is not a weakly prime, because it can be changed into another prime (212213332241) 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, 106106666145 + 106106666146.

It is an arithmetic number, because the mean of its divisors is an integer number (106106666146).

Almost surely, 2^212213332291 is an apocalyptic number.

212213332291 is a deficient number, since it is larger than the sum of its proper divisors (1).

212213332291 is an equidigital number, since it uses as much as digits as its factorization.

212213332291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The spelling of 212213332291 in words is "two hundred twelve billion, two hundred thirteen million, three hundred thirty-two thousand, two hundred ninety-one".