212122022293 has 2 divisors, whose sum is σ = 212122022294. Its totient is φ = 212122022292.

The previous prime is 212122022213. The next prime is 212122022309. The reversal of 212122022293 is 392220221212.

212122022293 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., 200989029124 + 11132993169 = 448318^2 + 105513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212122022293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212122022213) 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, 106061011146 + 106061011147.

It is an arithmetic number, because the mean of its divisors is an integer number (106061011147).

Almost surely, 2^212122022293 is an apocalyptic number.

It is an amenable number.

212122022293 is a deficient number, since it is larger than the sum of its proper divisors (1).

212122022293 is an equidigital number, since it uses as much as digits as its factorization.

212122022293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 212122022293 in words is "two hundred twelve billion, one hundred twenty-two million, twenty-two thousand, two hundred ninety-three".