2201221110 has 64 divisors (see below), whose sum is σ = 5810932224. Its totient is φ = 533619680.

The previous prime is 2201221103. The next prime is 2201221151. The reversal of 2201221110 is 111221022.

It is a Curzon number.

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, 12367 + ... + 67493.

It is an arithmetic number, because the mean of its divisors is an integer number (90795816).

Almost surely, 2^2201221110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2201221110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2905466112).

2201221110 is an abundant number, since it is smaller than the sum of its proper divisors (3609711114).

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

2201221110 is a wasteful number, since it uses less digits than its factorization.

2201221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55170 (or 55148 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2201221110 is about 46917.1728687908. The cubic root of 2201221110 is about 1300.8320334385.

Adding to 2201221110 its reverse (111221022), we get a palindrome (2312442132).

The spelling of 2201221110 in words is "two billion, two hundred one million, two hundred twenty-one thousand, one hundred ten".