122102110121 has 4 divisors (see below), whose sum is σ = 122118975312. Its totient is φ = 122085244932.

The previous prime is 122102110099. The next prime is 122102110181. The reversal of 122102110121 is 121011201221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121011201221 = 439 ⋅275651939.

It is a cyclic number.

It is not a de Polignac number, because 122102110121 - 2⁶ = 122102110057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122102110096 and 122102110105.

It is not an unprimeable number, because it can be changed into a prime (122102110181) 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, 8421731 + ... + 8436216.

It is an arithmetic number, because the mean of its divisors is an integer number (30529743828).

Almost surely, 2^122102110121 is an apocalyptic number.

It is an amenable number.

122102110121 is a deficient number, since it is larger than the sum of its proper divisors (16865191).

122102110121 is an equidigital number, since it uses as much as digits as its factorization.

122102110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16865190.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 122102110121 its reverse (121011201221), we get a palindrome (243113311342).

The spelling of 122102110121 in words is "one hundred twenty-two billion, one hundred two million, one hundred ten thousand, one hundred twenty-one".