121220120320032 has 24 divisors (see below), whose sum is σ = 318202815840336. Its totient is φ = 40406706773312.

The previous prime is 121220120320007. The next prime is 121220120320093. The reversal of 121220120320032 is 230023021022121.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 121220120319990 and 121220120320008.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631354793238 + ... + 631354793429.

It is an arithmetic number, because the mean of its divisors is an integer number (13258450660014).

Almost surely, 2^{121220120320032} is an apocalyptic number.

121220120320032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121220120320032 is an abundant number, since it is smaller than the sum of its proper divisors (196982695520304).

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

121220120320032 is a wasteful number, since it uses less digits than its factorization.

121220120320032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262709586680 (or 1262709586672 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121220120320032 its reverse (230023021022121), we get a palindrome (351243141342153).

The spelling of 121220120320032 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred twenty million, three hundred twenty thousand, thirty-two".