10031232220 has 24 divisors (see below), whose sum is σ = 21354160464. Its totient is φ = 3957526656.

The previous prime is 10031232199. The next prime is 10031232221. The reversal of 10031232220 is 2223213001.

It is a super-2 number, since 2×10031232220² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10031232194 and 10031232203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031232221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3433894 + ... + 3436813.

It is an arithmetic number, because the mean of its divisors is an integer number (889756686).

Almost surely, 2^10031232220 is an apocalyptic number.

10031232220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10031232220 is an abundant number, since it is smaller than the sum of its proper divisors (11322928244).

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

10031232220 is a wasteful number, since it uses less digits than its factorization.

10031232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6870789 (or 6870787 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 10031232220 its reverse (2223213001), we get a palindrome (12254445221).

The spelling of 10031232220 in words is "ten billion, thirty-one million, two hundred thirty-two thousand, two hundred twenty".