12012110022220 has 96 divisors (see below), whose sum is σ = 32817274592256. Its totient is φ = 3581250182400.

The previous prime is 12012110022217. The next prime is 12012110022293. The reversal of 12012110022220 is 2222001121021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12012110022194 and 12012110022203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169531351 + ... + 169602190.

It is an arithmetic number, because the mean of its divisors is an integer number (341846610336).

Almost surely, 2^{12012110022220} is an apocalyptic number.

12012110022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012110022220 is an abundant number, since it is smaller than the sum of its proper divisors (20805164570036).

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

12012110022220 is a wasteful number, since it uses less digits than its factorization.

12012110022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339133591 (or 339133589 counting only the distinct ones).

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

Adding to 12012110022220 its reverse (2222001121021), we get a palindrome (14234111143241).

The spelling of 12012110022220 in words is "twelve trillion, twelve billion, one hundred ten million, twenty-two thousand, two hundred twenty".