12201110020 has 72 divisors (see below), whose sum is σ = 28560458304. Its totient is φ = 4374216000.

The previous prime is 12201110011. The next prime is 12201110021. The reversal of 12201110020 is 2001110221.

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 = 12201109979 and 12201110006.

It is not an unprimeable number, because it can be changed into a prime (12201110021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136315 + ... + 207325.

It is an arithmetic number, because the mean of its divisors is an integer number (396673032).

Almost surely, 2^12201110020 is an apocalyptic number.

12201110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12201110020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14280229152).

12201110020 is an abundant number, since it is smaller than the sum of its proper divisors (16359348284).

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

12201110020 is a wasteful number, since it uses less digits than its factorization.

12201110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71113 (or 71100 counting only the distinct ones).

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

Adding to 12201110020 its reverse (2001110221), we get a palindrome (14202220241).

It can be divided in two parts, 12201 and 110020, that added together give a palindrome (122221).

The spelling of 12201110020 in words is "twelve billion, two hundred one million, one hundred ten thousand, twenty".