122330999981 has 2 divisors, whose sum is σ = 122330999982. Its totient is φ = 122330999980.

The previous prime is 122330999963. The next prime is 122331000017. The reversal of 122330999981 is 189999033221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119462861956 + 2868138025 = 345634^2 + 53555^2 .

It is a cyclic number.

It is not a de Polignac number, because 122330999981 - 2³⁴ = 105151130797 is a prime.

It is a super-2 number, since 2×122330999981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122330999081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61165499990 + 61165499991.

It is an arithmetic number, because the mean of its divisors is an integer number (61165499991).

Almost surely, 2^122330999981 is an apocalyptic number.

It is an amenable number.

122330999981 is a deficient number, since it is larger than the sum of its proper divisors (1).

122330999981 is an equidigital number, since it uses as much as digits as its factorization.

122330999981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1889568, while the sum is 56.

The spelling of 122330999981 in words is "one hundred twenty-two billion, three hundred thirty million, nine hundred ninety-nine thousand, nine hundred eighty-one".