122222210989 has 2 divisors, whose sum is σ = 122222210990. Its totient is φ = 122222210988.

The previous prime is 122222210969. The next prime is 122222211109. The reversal of 122222210989 is 989012222221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89403990025 + 32818220964 = 299005^2 + 181158^2 .

It is an emirp because it is prime and its reverse (989012222221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122222210989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122222210909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61111105494 + 61111105495.

It is an arithmetic number, because the mean of its divisors is an integer number (61111105495).

Almost surely, 2^122222210989 is an apocalyptic number.

It is an amenable number.

122222210989 is a deficient number, since it is larger than the sum of its proper divisors (1).

122222210989 is an equidigital number, since it uses as much as digits as its factorization.

122222210989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 122222210989 in words is "one hundred twenty-two billion, two hundred twenty-two million, two hundred ten thousand, nine hundred eighty-nine".