122861102161 has 4 divisors (see below), whose sum is σ = 140412688192. Its totient is φ = 105309516132.

The previous prime is 122861102137. The next prime is 122861102167. The reversal of 122861102161 is 161201168221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122861102161 - 2¹¹ = 122861100113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122861102167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8775793005 + ... + 8775793018.

It is an arithmetic number, because the mean of its divisors is an integer number (35103172048).

Almost surely, 2^122861102161 is an apocalyptic number.

It is an amenable number.

122861102161 is a deficient number, since it is larger than the sum of its proper divisors (17551586031).

122861102161 is an equidigital number, since it uses as much as digits as its factorization.

122861102161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17551586030.

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

The spelling of 122861102161 in words is "one hundred twenty-two billion, eight hundred sixty-one million, one hundred two thousand, one hundred sixty-one".