12121200110120 has 64 divisors (see below), whose sum is σ = 28458966384000. Its totient is φ = 4637595643648.

The previous prime is 12121200110099. The next prime is 12121200110141. The reversal of 12121200110120 is 2101100212121.

It is an interprime number because it is at equal distance from previous prime (12121200110099) and next prime (12121200110141).

It is a junction number, because it is equal to n+sod(n) for n = 12121200110095 and 12121200110104.

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, 100098971 + ... + 100219989.

It is an arithmetic number, because the mean of its divisors is an integer number (444671349750).

Almost surely, 2^{12121200110120} is an apocalyptic number.

12121200110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121200110120 is an abundant number, since it is smaller than the sum of its proper divisors (16337766273880).

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

12121200110120 is a wasteful number, since it uses less digits than its factorization.

12121200110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229922 (or 229918 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12121200110120 its reverse (2101100212121), we get a palindrome (14222300322241).

It can be divided in two parts, 121212001 and 10120, that added together give a palindrome (121222121).

The spelling of 12121200110120 in words is "twelve trillion, one hundred twenty-one billion, two hundred million, one hundred ten thousand, one hundred twenty".