10231100220 has 96 divisors (see below), whose sum is σ = 31573737216. Its totient is φ = 2454681600.

The previous prime is 10231100207. The next prime is 10231100227. The reversal of 10231100220 is 2200113201.

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 = 10231100196 and 10231100205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231100227) 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, 15886 + ... + 143925.

It is an arithmetic number, because the mean of its divisors is an integer number (328893096).

Almost surely, 2^10231100220 is an apocalyptic number.

10231100220 is a gapful number since it is divisible by the number (10) 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 10231100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15786868608).

10231100220 is an abundant number, since it is smaller than the sum of its proper divisors (21342636996).

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

10231100220 is a wasteful number, since it uses less digits than its factorization.

10231100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159931 (or 159929 counting only the distinct ones).

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

Adding to 10231100220 its reverse (2200113201), we get a palindrome (12431213421).

The spelling of 10231100220 in words is "ten billion, two hundred thirty-one million, one hundred thousand, two hundred twenty".