220320021213000 has 768 divisors, whose sum is σ = 758918738223360. Its totient is φ = 57641665536000.

The previous prime is 220320021212959. The next prime is 220320021213029. The reversal of 220320021213000 is 312120023022.

220320021213000 is a `hidden beast` number, since 2 + 2 + 0 + 320 + 0 + 21 + 21 + 300 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 59019559134 + ... + 59019562866.

It is an arithmetic number, because the mean of its divisors is an integer number (988175440395).

Almost surely, 2^{220320021213000} is an apocalyptic number.

220320021213000 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 220320021213000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379459369111680).

220320021213000 is an abundant number, since it is smaller than the sum of its proper divisors (538598717010360).

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

220320021213000 is a wasteful number, since it uses less digits than its factorization.

220320021213000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447 (or 4430 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 220320021213000 its reverse (312120023022), we get a palindrome (220632141236022).

The spelling of 220320021213000 in words is "two hundred twenty trillion, three hundred twenty billion, twenty-one million, two hundred thirteen thousand".