12211002001220 has 24 divisors (see below), whose sum is σ = 27974295494208. Its totient is φ = 4440364364000.

The previous prime is 12211002001217. The next prime is 12211002001229. The reversal of 12211002001220 is 2210020011221.

12211002001220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12211002001195 and 12211002001204.

It is not an unprimeable number, because it can be changed into a prime (12211002001229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27752277056 + ... + 27752277495.

It is an arithmetic number, because the mean of its divisors is an integer number (1165595645592).

Almost surely, 2^{12211002001220} is an apocalyptic number.

12211002001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211002001220 is an abundant number, since it is smaller than the sum of its proper divisors (15763293492988).

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

12211002001220 is a wasteful number, since it uses less digits than its factorization.

12211002001220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55504554571 (or 55504554569 counting only the distinct ones).

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

Adding to 12211002001220 its reverse (2210020011221), we get a palindrome (14421022012441).

The spelling of 12211002001220 in words is "twelve trillion, two hundred eleven billion, two million, one thousand, two hundred twenty".