220022240 has 48 divisors (see below), whose sum is σ = 525677040. Its totient is φ = 87014400.

The previous prime is 220022233. The next prime is 220022249. The reversal of 220022240 is 42220022.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220022249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6515 + ... + 21965.

It is an arithmetic number, because the mean of its divisors is an integer number (10951605).

Almost surely, 2^220022240 is an apocalyptic number.

220022240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220022240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262838520).

220022240 is an abundant number, since it is smaller than the sum of its proper divisors (305654800).

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

220022240 is a wasteful number, since it uses less digits than its factorization.

220022240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15555 (or 15547 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 220022240 is about 14833.1466654921. The cubic root of 220022240 is about 603.7014152172.

Adding to 220022240 its reverse (42220022), we get a palindrome (262242262).

It can be divided in two parts, 22002 and 2240, that added together give a palindrome (24242).

The spelling of 220022240 in words is "two hundred twenty million, twenty-two thousand, two hundred forty".