32111221120 has 256 divisors, whose sum is σ = 89943436800. Its totient is φ = 10832281600.

The previous prime is 32111221067. The next prime is 32111221157. The reversal of 32111221120 is 2112211123.

It is a super-2 number, since 2×32111221120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 32111221094 and 32111221103.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 8495391 + ... + 8499169.

It is an arithmetic number, because the mean of its divisors is an integer number (351341550).

Almost surely, 2^32111221120 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 32111221120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44971718400).

32111221120 is an abundant number, since it is smaller than the sum of its proper divisors (57832215680).

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

32111221120 is a wasteful number, since it uses less digits than its factorization.

32111221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897 (or 3885 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 32111221120 its reverse (2112211123), we get a palindrome (34223432243).

The spelling of 32111221120 in words is "thirty-two billion, one hundred eleven million, two hundred twenty-one thousand, one hundred twenty".