12120002221100 has 18 divisors (see below), whose sum is σ = 26300404820004. Its totient is φ = 4848000888400.

The previous prime is 12120002221027. The next prime is 12120002221121. The reversal of 12120002221100 is 112220002121.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60600011006 + ... + 60600011205.

Almost surely, 2^{12120002221100} is an apocalyptic number.

12120002221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120002221100 is an abundant number, since it is smaller than the sum of its proper divisors (14180402598904).

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

12120002221100 is a wasteful number, since it uses less digits than its factorization.

12120002221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121200022225 (or 121200022218 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12120002221100 its reverse (112220002121), we get a palindrome (12232222223221).

The spelling of 12120002221100 in words is "twelve trillion, one hundred twenty billion, two million, two hundred twenty-one thousand, one hundred".