12020214660 has 96 divisors (see below), whose sum is σ = 34777838592. Its totient is φ = 3098818560.

The previous prime is 12020214643. The next prime is 12020214671. The reversal of 12020214660 is 6641202021.

It is a self number, because there is not a number n which added to its sum of digits gives 12020214660.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2216272 + ... + 2221688.

It is an arithmetic number, because the mean of its divisors is an integer number (362269152).

Almost surely, 2^12020214660 is an apocalyptic number.

12020214660 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 12020214660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17388919296).

12020214660 is an abundant number, since it is smaller than the sum of its proper divisors (22757623932).

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

12020214660 is a wasteful number, since it uses less digits than its factorization.

12020214660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6653 (or 6651 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12020214660 its reverse (6641202021), we get a palindrome (18661416681).

It can be divided in two parts, 1202021 and 4660, that added together give a triangular number (1206681 = T₁₅₅₃).

The spelling of 12020214660 in words is "twelve billion, twenty million, two hundred fourteen thousand, six hundred sixty".