12102221012120 has 32 divisors (see below), whose sum is σ = 27636415153200. Its totient is φ = 4768636338048.

The previous prime is 12102221012071. The next prime is 12102221012131. The reversal of 12102221012120 is 2121012220121.

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, 2257874375 + ... + 2257879734.

Almost surely, 2^{12102221012120} is an apocalyptic number.

12102221012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102221012120 is an abundant number, since it is smaller than the sum of its proper divisors (15534194141080).

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

12102221012120 is a wasteful number, since it uses less digits than its factorization.

12102221012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515754187 (or 4515754183 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12102221012120 its reverse (2121012220121), we get a palindrome (14223233232241).

The spelling of 12102221012120 in words is "twelve trillion, one hundred two billion, two hundred twenty-one million, twelve thousand, one hundred twenty".