3201111120220 has 96 divisors (see below), whose sum is σ = 7341655950720. Its totient is φ = 1165360020480.

The previous prime is 3201111120173. The next prime is 3201111120247. The reversal of 3201111120220 is 220211111023.

3201111120220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3201111120220² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3201111120194 and 3201111120203.

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, 5871630 + ... + 6393610.

It is an arithmetic number, because the mean of its divisors is an integer number (76475582820).

Almost surely, 2^{3201111120220} 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 3201111120220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3670827975360).

3201111120220 is an abundant number, since it is smaller than the sum of its proper divisors (4140544830500).

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

3201111120220 is a wasteful number, since it uses less digits than its factorization.

3201111120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522335 (or 522333 counting only the distinct ones).

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

Adding to 3201111120220 its reverse (220211111023), we get a palindrome (3421322231243).

The spelling of 3201111120220 in words is "three trillion, two hundred one billion, one hundred eleven million, one hundred twenty thousand, two hundred twenty".