122201119981 has 2 divisors, whose sum is σ = 122201119982. Its totient is φ = 122201119980.

The previous prime is 122201119939. The next prime is 122201120011. The reversal of 122201119981 is 189911102221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94055689225 + 28145430756 = 306685^2 + 167766^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122201119981 is a prime.

It is a super-2 number, since 2×122201119981² (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 122201119981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122201119081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61100559990 + 61100559991.

It is an arithmetic number, because the mean of its divisors is an integer number (61100559991).

Almost surely, 2^122201119981 is an apocalyptic number.

It is an amenable number.

122201119981 is a deficient number, since it is larger than the sum of its proper divisors (1).

122201119981 is an equidigital number, since it uses as much as digits as its factorization.

122201119981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 37.

The spelling of 122201119981 in words is "one hundred twenty-two billion, two hundred one million, one hundred nineteen thousand, nine hundred eighty-one".