12120222110020 has 12 divisors (see below), whose sum is σ = 25452466431084. Its totient is φ = 4848088844000.

The previous prime is 12120222109997. The next prime is 12120222110047. The reversal of 12120222110020 is 2001122202121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8135535425796 + 3984686684224 = 2852286^2 + 1996168^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12120222109976 and 12120222110003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303005552731 + ... + 303005552770.

It is an arithmetic number, because the mean of its divisors is an integer number (2121038869257).

Almost surely, 2^{12120222110020} is an apocalyptic number.

12120222110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120222110020 is an abundant number, since it is smaller than the sum of its proper divisors (13332244321064).

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

12120222110020 is a wasteful number, since it uses less digits than its factorization.

12120222110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606011105510 (or 606011105508 counting only the distinct ones).

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

Adding to 12120222110020 its reverse (2001122202121), we get a palindrome (14121344312141).

The spelling of 12120222110020 in words is "twelve trillion, one hundred twenty billion, two hundred twenty-two million, one hundred ten thousand, twenty".