32001121220 has 48 divisors (see below), whose sum is σ = 68553838080. Its totient is φ = 12543613056.

The previous prime is 32001121213. The next prime is 32001121267. The reversal of 32001121220 is 2212110023.

It is a happy number.

It is a super-3 number, since 3×32001121220³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32001121195 and 32001121204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 871349 + ... + 907331.

It is an arithmetic number, because the mean of its divisors is an integer number (1428204960).

Almost surely, 2^32001121220 is an apocalyptic number.

It is an amenable number.

32001121220 is an abundant number, since it is smaller than the sum of its proper divisors (36552716860).

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

32001121220 is a wasteful number, since it uses less digits than its factorization.

32001121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36884 (or 36882 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 32001121220 its reverse (2212110023), we get a palindrome (34213231243).

The spelling of 32001121220 in words is "thirty-two billion, one million, one hundred twenty-one thousand, two hundred twenty".