122122212139 has 2 divisors, whose sum is σ = 122122212140. Its totient is φ = 122122212138.

The previous prime is 122122212083. The next prime is 122122212203. The reversal of 122122212139 is 931212221221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122122212139 - 2¹³ = 122122203947 is a prime.

It is not a weakly prime, because it can be changed into another prime (122122212439) 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, 61061106069 + 61061106070.

It is an arithmetic number, because the mean of its divisors is an integer number (61061106070).

Almost surely, 2^122122212139 is an apocalyptic number.

122122212139 is a deficient number, since it is larger than the sum of its proper divisors (1).

122122212139 is an equidigital number, since it uses as much as digits as its factorization.

122122212139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The spelling of 122122212139 in words is "one hundred twenty-two billion, one hundred twenty-two million, two hundred twelve thousand, one hundred thirty-nine".