121232020121 has 8 divisors (see below), whose sum is σ = 121365810720. Its totient is φ = 121098281472.

The previous prime is 121232020109. The next prime is 121232020159. The reversal of 121232020121 is 121020232121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121232020121 - 2³⁰ = 120158278297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121232020121.

It is not an unprimeable number, because it can be changed into a prime (121232020621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6238406 + ... + 6257808.

It is an arithmetic number, because the mean of its divisors is an integer number (15170726340).

Almost surely, 2^121232020121 is an apocalyptic number.

It is an amenable number.

121232020121 is a deficient number, since it is larger than the sum of its proper divisors (133790599).

121232020121 is a wasteful number, since it uses less digits than its factorization.

121232020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25975.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121232020121 its reverse (121020232121), we get a palindrome (242252252242).

The spelling of 121232020121 in words is "one hundred twenty-one billion, two hundred thirty-two million, twenty thousand, one hundred twenty-one".