20331310010220 has 384 divisors, whose sum is σ = 69276381511680. Its totient is φ = 4909327580160.

The previous prime is 20331310010203. The next prime is 20331310010257. The reversal of 20331310010220 is 2201001313302.

20331310010220 is a `hidden beast` number, since 2 + 0 + 331 + 3 + 100 + 10 + 220 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 20331310010193 and 20331310010202.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1813185334 + ... + 1813196546.

It is an arithmetic number, because the mean of its divisors is an integer number (180407243520).

Almost surely, 2^{20331310010220} is an apocalyptic number.

20331310010220 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 20331310010220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34638190755840).

20331310010220 is an abundant number, since it is smaller than the sum of its proper divisors (48945071501460).

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

20331310010220 is a wasteful number, since it uses less digits than its factorization.

20331310010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12422 (or 12414 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20331310010220 its reverse (2201001313302), we get a palindrome (22532311323522).

The spelling of 20331310010220 in words is "twenty trillion, three hundred thirty-one billion, three hundred ten million, ten thousand, two hundred twenty".