12101121220120 has 32 divisors (see below), whose sum is σ = 27227656962000. Its totient is φ = 4840424627328.

The previous prime is 12101121220073. The next prime is 12101121220141. The reversal of 12101121220120 is 2102212110121.

It is a junction number, because it is equal to n+sod(n) for n = 12101121220094 and 12101121220103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9063331 + ... + 10312429.

Almost surely, 2^{12101121220120} is an apocalyptic number.

12101121220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101121220120 is an abundant number, since it is smaller than the sum of its proper divisors (15126535741880).

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

12101121220120 is a wasteful number, since it uses less digits than its factorization.

12101121220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491307 (or 1491303 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12101121220120 its reverse (2102212110121), we get a palindrome (14203333330241).

The spelling of 12101121220120 in words is "twelve trillion, one hundred one billion, one hundred twenty-one million, two hundred twenty thousand, one hundred twenty".