20330130320220 has 288 divisors, whose sum is σ = 67708025763840. Its totient is φ = 4542570332160.

The previous prime is 20330130320219. The next prime is 20330130320231. The reversal of 20330130320220 is 2202303103302.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 115845340 + ... + 116020700.

It is an arithmetic number, because the mean of its divisors is an integer number (235097311680).

Almost surely, 2^{20330130320220} is an apocalyptic number.

20330130320220 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 20330130320220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33854012881920).

20330130320220 is an abundant number, since it is smaller than the sum of its proper divisors (47377895443620).

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

20330130320220 is a wasteful number, since it uses less digits than its factorization.

20330130320220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176273 (or 176264 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20330130320220 its reverse (2202303103302), we get a palindrome (22532433423522).

The spelling of 20330130320220 in words is "twenty trillion, three hundred thirty billion, one hundred thirty million, three hundred twenty thousand, two hundred twenty".