221224411140 has 96 divisors (see below), whose sum is σ = 652127656320. Its totient is φ = 55879888896.

The previous prime is 221224411123. The next prime is 221224411141. The reversal of 221224411140 is 41114422122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 221224411140.

It is not an unprimeable number, because it can be changed into a prime (221224411141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11774794 + ... + 11793566.

It is an arithmetic number, because the mean of its divisors is an integer number (6792996420).

Almost surely, 2^221224411140 is an apocalyptic number.

221224411140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221224411140 is an abundant number, since it is smaller than the sum of its proper divisors (430903245180).

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

221224411140 is a wasteful number, since it uses less digits than its factorization.

221224411140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29141 (or 29139 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 221224411140 its reverse (41114422122), we get a palindrome (262338833262).

The spelling of 221224411140 in words is "two hundred twenty-one billion, two hundred twenty-four million, four hundred eleven thousand, one hundred forty".