23101100220 has 192 divisors, whose sum is σ = 76286246400. Its totient is φ = 5162019840.

The previous prime is 23101100219. The next prime is 23101100291. The reversal of 23101100220 is 2200110132.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 23101100196 and 23101100205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 439086 + ... + 488874.

It is an arithmetic number, because the mean of its divisors is an integer number (397324200).

Almost surely, 2^23101100220 is an apocalyptic number.

23101100220 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 23101100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38143123200).

23101100220 is an abundant number, since it is smaller than the sum of its proper divisors (53185146180).

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

23101100220 is a wasteful number, since it uses less digits than its factorization.

23101100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49868 (or 49866 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 23101100220 its reverse (2200110132), we get a palindrome (25301210352).

It can be divided in two parts, 23101 and 100220, that added together give a palindrome (123321).

The spelling of 23101100220 in words is "twenty-three billion, one hundred one million, one hundred thousand, two hundred twenty".