23200220320220 has 96 divisors (see below), whose sum is σ = 51443966306880. Its totient is φ = 8764372869120.

The previous prime is 23200220320177. The next prime is 23200220320229. The reversal of 23200220320220 is 2202302200232.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 23200220320192 and 23200220320201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23200220320229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 539355434 + ... + 539398446.

It is an arithmetic number, because the mean of its divisors is an integer number (535874649030).

Almost surely, 2^{23200220320220} is an apocalyptic number.

23200220320220 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 23200220320220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25721983153440).

23200220320220 is an abundant number, since it is smaller than the sum of its proper divisors (28243745986660).

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

23200220320220 is a wasteful number, since it uses less digits than its factorization.

23200220320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47415 (or 47413 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 23200220320220 its reverse (2202302200232), we get a palindrome (25402522520452).

The spelling of 23200220320220 in words is "twenty-three trillion, two hundred billion, two hundred twenty million, three hundred twenty thousand, two hundred twenty".