10312132220 has 96 divisors (see below), whose sum is σ = 23939314560. Its totient is φ = 3707043840.

The previous prime is 10312132217. The next prime is 10312132279. The reversal of 10312132220 is 2223121301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8943164 + ... + 8944316.

It is an arithmetic number, because the mean of its divisors is an integer number (249367860).

Almost surely, 2^10312132220 is an apocalyptic number.

10312132220 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 10312132220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11969657280).

10312132220 is an abundant number, since it is smaller than the sum of its proper divisors (13627182340).

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

10312132220 is a wasteful number, since it uses less digits than its factorization.

10312132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10312132220 its reverse (2223121301), we get a palindrome (12535253521).

The spelling of 10312132220 in words is "ten billion, three hundred twelve million, one hundred thirty-two thousand, two hundred twenty".