122102021111121 has 24 divisors (see below), whose sum is σ = 180672095691360. Its totient is φ = 79415591582400.

The previous prime is 122102021111017. The next prime is 122102021111129. The reversal of 122102021111121 is 121111120201221.

It is a happy number.

It is not a de Polignac number, because 122102021111121 - 2¹¹ = 122102021109073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122102021111094 and 122102021111103.

It is not an unprimeable number, because it can be changed into a prime (122102021111129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99823210 + ... + 101038988.

It is an arithmetic number, because the mean of its divisors is an integer number (7528003987140).

Almost surely, 2^{122102021111121} is an apocalyptic number.

It is an amenable number.

122102021111121 is a deficient number, since it is larger than the sum of its proper divisors (58570074580239).

122102021111121 is a wasteful number, since it uses less digits than its factorization.

122102021111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487997 (or 1487994 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 122102021111121 its reverse (121111120201221), we get a palindrome (243213141312342).

The spelling of 122102021111121 in words is "one hundred twenty-two trillion, one hundred two billion, twenty-one million, one hundred eleven thousand, one hundred twenty-one".