122122011012109 has 2 divisors, whose sum is σ = 122122011012110. Its totient is φ = 122122011012108.

The previous prime is 122122011012107. The next prime is 122122011012121. The reversal of 122122011012109 is 901210110221221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104251818902884 + 17870192109225 = 10210378^2 + 4227315^2 .

It is an emirp because it is prime and its reverse (901210110221221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122122011012109 - 2¹ = 122122011012107 is a prime.

Together with 122122011012107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122122011012107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61061005506054 + 61061005506055.

It is an arithmetic number, because the mean of its divisors is an integer number (61061005506055).

Almost surely, 2^{122122011012109} is an apocalyptic number.

It is an amenable number.

122122011012109 is a deficient number, since it is larger than the sum of its proper divisors (1).

122122011012109 is an equidigital number, since it uses as much as digits as its factorization.

122122011012109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

The spelling of 122122011012109 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, eleven million, twelve thousand, one hundred nine".