12011332210220 has 72 divisors (see below), whose sum is σ = 29342583504864. Its totient is φ = 4118084753664.

The previous prime is 12011332210123. The next prime is 12011332210223. The reversal of 12011332210220 is 2201223311021.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12011332210192 and 12011332210201.

It is not an unprimeable number, because it can be changed into a prime (12011332210223) 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, 61989209 + ... + 62182671.

It is an arithmetic number, because the mean of its divisors is an integer number (407535882012).

Almost surely, 2^{12011332210220} is an apocalyptic number.

12011332210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011332210220 is an abundant number, since it is smaller than the sum of its proper divisors (17331251294644).

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

12011332210220 is a wasteful number, since it uses less digits than its factorization.

12011332210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256839 (or 256830 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12011332210220 its reverse (2201223311021), we get a palindrome (14212555521241).

The spelling of 12011332210220 in words is "twelve trillion, eleven billion, three hundred thirty-two million, two hundred ten thousand, two hundred twenty".