32113112220 has 144 divisors (see below), whose sum is σ = 111379719360. Its totient is φ = 7336562688.

The previous prime is 32113112203. The next prime is 32113112221. The reversal of 32113112220 is 2221131123.

32113112220 is a `hidden beast` number, since 321 + 13 + 112 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 32113112193 and 32113112202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32113112221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3262266 + ... + 3272094.

Almost surely, 2^32113112220 is an apocalyptic number.

32113112220 is a gapful number since it is divisible by the number (30) 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 32113112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55689859680).

32113112220 is an abundant number, since it is smaller than the sum of its proper divisors (79266607140).

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

32113112220 is a wasteful number, since it uses less digits than its factorization.

32113112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12444 (or 12439 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 32113112220 its reverse (2221131123), we get a palindrome (34334243343).

The spelling of 32113112220 in words is "thirty-two billion, one hundred thirteen million, one hundred twelve thousand, two hundred twenty".