121232020120 has 16 divisors (see below), whose sum is σ = 272772045360. Its totient is φ = 48492808032.

The previous prime is 121232020109. The next prime is 121232020159. The reversal of 121232020120 is 21020232121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121232020094 and 121232020103.

It is a congruent number.

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, 1515400212 + ... + 1515400291.

It is an arithmetic number, because the mean of its divisors is an integer number (17048252835).

Almost surely, 2^121232020120 is an apocalyptic number.

121232020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121232020120 is an abundant number, since it is smaller than the sum of its proper divisors (151540025240).

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

121232020120 is a wasteful number, since it uses less digits than its factorization.

121232020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3030800514 (or 3030800510 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 121232020120 its reverse (21020232121), we get a palindrome (142252252241).

The spelling of 121232020120 in words is "one hundred twenty-one billion, two hundred thirty-two million, twenty thousand, one hundred twenty".