220021220000 has 240 divisors, whose sum is σ = 570757948992. Its totient is φ = 83297280000.

The previous prime is 220021219993. The next prime is 220021220011. The reversal of 220021220000 is 22120022.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44617535 + ... + 44622465.

Almost surely, 2^220021220000 is an apocalyptic number.

220021220000 is a gapful number since it is divisible by the number (20) 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 220021220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285378974496).

220021220000 is an abundant number, since it is smaller than the sum of its proper divisors (350736728992).

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

220021220000 is an equidigital number, since it uses as much as digits as its factorization.

220021220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5081 (or 5058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 220021220000 its reverse (22120022), we get a palindrome (220043340022).

The spelling of 220021220000 in words is "two hundred twenty billion, twenty-one million, two hundred twenty thousand".