12101200120 has 16 divisors (see below), whose sum is σ = 27227700360. Its totient is φ = 4840480032.

The previous prime is 12101200093. The next prime is 12101200123. The reversal of 12101200120 is 2100210121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12101200097 and 12101200106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101200123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151264962 + ... + 151265041.

Almost surely, 2^12101200120 is an apocalyptic number.

12101200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101200120 is an abundant number, since it is smaller than the sum of its proper divisors (15126500240).

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

12101200120 is a wasteful number, since it uses less digits than its factorization.

12101200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302530014 (or 302530010 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12101200120 its reverse (2100210121), we get a palindrome (14201410241).

The spelling of 12101200120 in words is "twelve billion, one hundred one million, two hundred thousand, one hundred twenty".