122111222089 has 2 divisors, whose sum is σ = 122111222090. Its totient is φ = 122111222088.

The previous prime is 122111222027. The next prime is 122111222153. The reversal of 122111222089 is 980222111221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113987264400 + 8123957689 = 337620^2 + 90133^2 .

It is a cyclic number.

It is not a de Polignac number, because 122111222089 - 2¹⁷ = 122111091017 is a prime.

It is a super-2 number, since 2×122111222089² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122111222089.

It is not a weakly prime, because it can be changed into another prime (122111222489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61055611044 + 61055611045.

It is an arithmetic number, because the mean of its divisors is an integer number (61055611045).

Almost surely, 2^122111222089 is an apocalyptic number.

It is an amenable number.

122111222089 is a deficient number, since it is larger than the sum of its proper divisors (1).

122111222089 is an equidigital number, since it uses as much as digits as its factorization.

122111222089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 122111222089 in words is "one hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, eighty-nine".