220031340032 has 80 divisors (see below), whose sum is σ = 502908764160. Its totient is φ = 94210725888.

The previous prime is 220031339989. The next prime is 220031340037. The reversal of 220031340032 is 230043130022.

It is a super-2 number, since 2×220031340032² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220031339986 and 220031340013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220031340037) 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, 3867569 + ... + 3924047.

It is an arithmetic number, because the mean of its divisors is an integer number (6286359552).

Almost surely, 2^220031340032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220031340032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251454382080).

220031340032 is an abundant number, since it is smaller than the sum of its proper divisors (282877424128).

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

220031340032 is an equidigital number, since it uses as much as digits as its factorization.

220031340032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57591 (or 57575 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 220031340032 its reverse (230043130022), we get a palindrome (450074470054).

The spelling of 220031340032 in words is "two hundred twenty billion, thirty-one million, three hundred forty thousand, thirty-two".