2201121320 has 32 divisors (see below), whose sum is σ = 4954331520. Its totient is φ = 880127040.

The previous prime is 2201121311. The next prime is 2201121337. The reversal of 2201121320 is 231211022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2201121295 and 2201121304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122429 + ... + 139251.

It is an arithmetic number, because the mean of its divisors is an integer number (154822860).

Almost surely, 2^2201121320 is an apocalyptic number.

2201121320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201121320 is an abundant number, since it is smaller than the sum of its proper divisors (2753210200).

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

2201121320 is a wasteful number, since it uses less digits than its factorization.

2201121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20105 (or 20101 counting only the distinct ones).

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

The square root of 2201121320 is about 46916.1093868620. The cubic root of 2201121320 is about 1300.8123758661.

Adding to 2201121320 its reverse (231211022), we get a palindrome (2432332342).

The spelling of 2201121320 in words is "two billion, two hundred one million, one hundred twenty-one thousand, three hundred twenty".