122212110109 has 2 divisors, whose sum is σ = 122212110110. Its totient is φ = 122212110108.

The previous prime is 122212110091. The next prime is 122212110121. The reversal of 122212110109 is 901011212221.

Together with previous prime (122212110091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98643105625 + 23569004484 = 314075^2 + 153522^2 .

It is an emirp because it is prime and its reverse (901011212221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122212110109 - 2¹³ = 122212101917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122212110109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122212110149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61106055054 + 61106055055.

It is an arithmetic number, because the mean of its divisors is an integer number (61106055055).

Almost surely, 2^122212110109 is an apocalyptic number.

It is an amenable number.

122212110109 is a deficient number, since it is larger than the sum of its proper divisors (1).

122212110109 is an equidigital number, since it uses as much as digits as its factorization.

122212110109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 122212110109 in words is "one hundred twenty-two billion, two hundred twelve million, one hundred ten thousand, one hundred nine".