20024731106220 has 192 divisors, whose sum is σ = 58386463027200. Its totient is φ = 5121737026560.

The previous prime is 20024731106137. The next prime is 20024731106243. The reversal of 20024731106220 is 2260113742002.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 308624422 + ... + 308689298.

It is an arithmetic number, because the mean of its divisors is an integer number (304096161600).

Almost surely, 2^{20024731106220} is an apocalyptic number.

20024731106220 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 20024731106220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29193231513600).

20024731106220 is an abundant number, since it is smaller than the sum of its proper divisors (38361731920980).

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

20024731106220 is a wasteful number, since it uses less digits than its factorization.

20024731106220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66088 (or 66086 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

Adding to 20024731106220 its reverse (2260113742002), we get a palindrome (22284844848222).

The spelling of 20024731106220 in words is "twenty trillion, twenty-four billion, seven hundred thirty-one million, one hundred six thousand, two hundred twenty".