12012220110020 has 48 divisors (see below), whose sum is σ = 27168456419328. Its totient is φ = 4434896188800.

The previous prime is 12012220110001. The next prime is 12012220110047. The reversal of 12012220110020 is 2001102221021.

It is a junction number, because it is equal to n+sod(n) for n = 12012220109977 and 12012220110004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1003397 + ... + 5003123.

It is an arithmetic number, because the mean of its divisors is an integer number (566009508736).

Almost surely, 2^{12012220110020} is an apocalyptic number.

12012220110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012220110020 is an abundant number, since it is smaller than the sum of its proper divisors (15156236309308).

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

12012220110020 is a wasteful number, since it uses less digits than its factorization.

12012220110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4011300 (or 4011298 counting only the distinct ones).

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

Adding to 12012220110020 its reverse (2001102221021), we get a palindrome (14013322331041).

The spelling of 12012220110020 in words is "twelve trillion, twelve billion, two hundred twenty million, one hundred ten thousand, twenty".