122021243 has 2 divisors, whose sum is σ = 122021244. Its totient is φ = 122021242.

The previous prime is 122021213. The next prime is 122021269. The reversal of 122021243 is 342120221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122021243 - 2¹⁴ = 122004859 is a prime.

It is not a weakly prime, because it can be changed into another prime (122021213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010621 + 61010622.

It is an arithmetic number, because the mean of its divisors is an integer number (61010622).

Almost surely, 2^122021243 is an apocalyptic number.

122021243 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021243 is an equidigital number, since it uses as much as digits as its factorization.

122021243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 122021243 is about 11046.3226007572. The cubic root of 122021243 is about 495.9963511590.

Adding to 122021243 its reverse (342120221), we get a palindrome (464141464).

The spelling of 122021243 in words is "one hundred twenty-two million, twenty-one thousand, two hundred forty-three".