122100110221181 has 2 divisors, whose sum is σ = 122100110221182. Its totient is φ = 122100110221180.

The previous prime is 122100110221163. The next prime is 122100110221217. The reversal of 122100110221181 is 181122011001221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85371298436281 + 36728811784900 = 9239659^2 + 6060430^2 .

It is a cyclic number.

It is not a de Polignac number, because 122100110221181 - 2³⁸ = 121825232314237 is a prime.

It is a super-2 number, since 2×122100110221181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122100110221681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61050055110590 + 61050055110591.

It is an arithmetic number, because the mean of its divisors is an integer number (61050055110591).

Almost surely, 2^{122100110221181} is an apocalyptic number.

It is an amenable number.

122100110221181 is a deficient number, since it is larger than the sum of its proper divisors (1).

122100110221181 is an equidigital number, since it uses as much as digits as its factorization.

122100110221181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 23.

The spelling of 122100110221181 in words is "one hundred twenty-two trillion, one hundred billion, one hundred ten million, two hundred twenty-one thousand, one hundred eighty-one".