2223221500 has 48 divisors (see below), whose sum is σ = 4863208896. Its totient is φ = 887880000.

The previous prime is 2223221491. The next prime is 2223221501. The reversal of 2223221500 is 51223222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223221501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 347329 + ... + 353671.

It is an arithmetic number, because the mean of its divisors is an integer number (101316852).

Almost surely, 2^2223221500 is an apocalyptic number.

2223221500 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 2223221500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2431604448).

2223221500 is an abundant number, since it is smaller than the sum of its proper divisors (2639987396).

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

2223221500 is a wasteful number, since it uses less digits than its factorization.

2223221500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7063 (or 7051 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2223221500 is about 47151.0498292456. The cubic root of 2223221500 is about 1305.1514530897.

Adding to 2223221500 its reverse (51223222), we get a palindrome (2274444722).

The spelling of 2223221500 in words is "two billion, two hundred twenty-three million, two hundred twenty-one thousand, five hundred".