12100221112120 has 16 divisors (see below), whose sum is σ = 27225497502360. Its totient is φ = 4840088444832.

The previous prime is 12100221111967. The next prime is 12100221112123. The reversal of 12100221112120 is 2121112200121.

It is a super-2 number, since 2×12100221112120² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12100221112094 and 12100221112103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100221112123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151252763862 + ... + 151252763941.

Almost surely, 2^{12100221112120} is an apocalyptic number.

12100221112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100221112120 is an abundant number, since it is smaller than the sum of its proper divisors (15125276390240).

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

12100221112120 is a wasteful number, since it uses less digits than its factorization.

12100221112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302505527814 (or 302505527810 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12100221112120 its reverse (2121112200121), we get a palindrome (14221333312241).

The spelling of 12100221112120 in words is "twelve trillion, one hundred billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twenty".