121112330020 has 48 divisors (see below), whose sum is σ = 277919300736. Its totient is φ = 43967520000.

The previous prime is 121112329999. The next prime is 121112330077. The reversal of 121112330020 is 20033211121.

It is a junction number, because it is equal to n+sod(n) for n = 121112329976 and 121112330003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325776 + ... + 590215.

It is an arithmetic number, because the mean of its divisors is an integer number (5789985432).

Almost surely, 2^121112330020 is an apocalyptic number.

121112330020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121112330020 is an abundant number, since it is smaller than the sum of its proper divisors (156806970716).

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

121112330020 is a wasteful number, since it uses less digits than its factorization.

121112330020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916612 (or 916610 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121112330020 its reverse (20033211121), we get a palindrome (141145541141).

The spelling of 121112330020 in words is "one hundred twenty-one billion, one hundred twelve million, three hundred thirty thousand, twenty".