20330030213220 has 144 divisors (see below), whose sum is σ = 71311490728128. Its totient is φ = 4289412960000.

The previous prime is 20330030213189. The next prime is 20330030213237. The reversal of 20330030213220 is 2231203003302.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 265922406 + ... + 265998845.

It is an arithmetic number, because the mean of its divisors is an integer number (495218685612).

Almost surely, 2^{20330030213220} is an apocalyptic number.

20330030213220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20330030213220 is an abundant number, since it is smaller than the sum of its proper divisors (50981460514908).

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

20330030213220 is a wasteful number, since it uses less digits than its factorization.

20330030213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531921290 (or 531921281 counting only the distinct ones).

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

Adding to 20330030213220 its reverse (2231203003302), we get a palindrome (22561233216522).

The spelling of 20330030213220 in words is "twenty trillion, three hundred thirty billion, thirty million, two hundred thirteen thousand, two hundred twenty".