12221002102120 has 32 divisors (see below), whose sum is σ = 31425433977600. Its totient is φ = 4190057863488.

The previous prime is 12221002102117. The next prime is 12221002102163. The reversal of 12221002102120 is 2120120012221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12221002102094 and 12221002102103.

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, 21823217760 + ... + 21823218319.

It is an arithmetic number, because the mean of its divisors is an integer number (982044811800).

Almost surely, 2^{12221002102120} is an apocalyptic number.

12221002102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221002102120 is an abundant number, since it is smaller than the sum of its proper divisors (19204431875480).

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

12221002102120 is a wasteful number, since it uses less digits than its factorization.

12221002102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43646436097 (or 43646436093 counting only the distinct ones).

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

Adding to 12221002102120 its reverse (2120120012221), we get a palindrome (14341122114341).

The spelling of 12221002102120 in words is "twelve trillion, two hundred twenty-one billion, two million, one hundred two thousand, one hundred twenty".