12020220000 has 360 divisors, whose sum is σ = 43735956264. Its totient is φ = 3128832000.

The previous prime is 12020219989. The next prime is 12020220001. The reversal of 12020220000 is 2202021.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020220001) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 7739224 + ... + 7740776.

Almost surely, 2^12020220000 is an apocalyptic number.

12020220000 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 12020220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21867978132).

12020220000 is an abundant number, since it is smaller than the sum of its proper divisors (31715736264).

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

12020220000 is a wasteful number, since it uses less digits than its factorization.

12020220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632 (or 1606 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 12020220000 its reverse (2202021), we get a palindrome (12022422021).

The spelling of 12020220000 in words is "twelve billion, twenty million, two hundred twenty thousand".