12121010012120 has 128 divisors (see below), whose sum is σ = 27657921432960. Its totient is φ = 4780283289600.

The previous prime is 12121010012119. The next prime is 12121010012147. The reversal of 12121010012120 is 2121001012121.

It is a junction number, because it is equal to n+sod(n) for n = 12121010012095 and 12121010012104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1207627742 + ... + 1207637778.

It is an arithmetic number, because the mean of its divisors is an integer number (216077511195).

Almost surely, 2^{12121010012120} is an apocalyptic number.

12121010012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121010012120 is an abundant number, since it is smaller than the sum of its proper divisors (15536911420840).

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

12121010012120 is a wasteful number, since it uses less digits than its factorization.

12121010012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11373 (or 11369 counting only the distinct ones).

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

Adding to 12121010012120 its reverse (2121001012121), we get a palindrome (14242011024241).

The spelling of 12121010012120 in words is "twelve trillion, one hundred twenty-one billion, ten million, twelve thousand, one hundred twenty".