121232120310121 has 32 divisors (see below), whose sum is σ = 139536248832000. Its totient is φ = 104564935031040.

The previous prime is 121232120310071. The next prime is 121232120310137. The reversal of 121232120310121 is 121013021232121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121232120310121 - 2¹¹ = 121232120308073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121232120310092 and 121232120310101.

It is not an unprimeable number, because it can be changed into a prime (121232120320121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21497746 + ... + 26544628.

It is an arithmetic number, because the mean of its divisors is an integer number (4360507776000).

Almost surely, 2^{121232120310121} is an apocalyptic number.

It is an amenable number.

121232120310121 is a deficient number, since it is larger than the sum of its proper divisors (18304128521879).

121232120310121 is a wasteful number, since it uses less digits than its factorization.

121232120310121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049349.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 121232120310121 its reverse (121013021232121), we get a palindrome (242245141542242).

The spelling of 121232120310121 in words is "one hundred twenty-one trillion, two hundred thirty-two billion, one hundred twenty million, three hundred ten thousand, one hundred twenty-one".