212211222049 has 2 divisors, whose sum is σ = 212211222050. Its totient is φ = 212211222048.

The previous prime is 212211221953. The next prime is 212211222059. The reversal of 212211222049 is 940222112212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212204871649 + 6350400 = 460657^2 + 2520^2 .

It is a cyclic number.

It is not a de Polignac number, because 212211222049 - 2¹³ = 212211213857 is a prime.

It is not a weakly prime, because it can be changed into another prime (212211222059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106105611024 + 106105611025.

It is an arithmetic number, because the mean of its divisors is an integer number (106105611025).

Almost surely, 2^212211222049 is an apocalyptic number.

It is an amenable number.

212211222049 is a deficient number, since it is larger than the sum of its proper divisors (1).

212211222049 is an equidigital number, since it uses as much as digits as its factorization.

212211222049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 212211222049 in words is "two hundred twelve billion, two hundred eleven million, two hundred twenty-two thousand, forty-nine".