12121222000120 has 64 divisors (see below), whose sum is σ = 27739861538400. Its totient is φ = 4765475473920.

The previous prime is 12121222000039. The next prime is 12121222000159. The reversal of 12121222000120 is 2100022212121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12121222000094 and 12121222000103.

It is a congruent number.

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, 13101442 + ... + 13996078.

Almost surely, 2^{12121222000120} is an apocalyptic number.

12121222000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121222000120 is an abundant number, since it is smaller than the sum of its proper divisors (15618639538280).

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

12121222000120 is a wasteful number, since it uses less digits than its factorization.

12121222000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900448 (or 900444 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12121222000120 its reverse (2100022212121), we get a palindrome (14221244212241).

The spelling of 12121222000120 in words is "twelve trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twenty", and thus it is an aban number.