121232121330120 has 128 divisors (see below), whose sum is σ = 375447822710400. Its totient is φ = 31297298264064.

The previous prime is 121232121330119. The next prime is 121232121330127. The reversal of 121232121330120 is 21033121232121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (121232121330127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103375315 + ... + 104541474.

It is an arithmetic number, because the mean of its divisors is an integer number (2933186114925).

Almost surely, 2^{121232121330120} is an apocalyptic number.

121232121330120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121232121330120 is an abundant number, since it is smaller than the sum of its proper divisors (254215701380280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121232121330120 is a wasteful number, since it uses less digits than its factorization.

121232121330120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207916959 (or 207916955 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 121232121330120 its reverse (21033121232121), we get a palindrome (142265242562241).

The spelling of 121232121330120 in words is "one hundred twenty-one trillion, two hundred thirty-two billion, one hundred twenty-one million, three hundred thirty thousand, one hundred twenty".