2402221224 has 128 divisors (see below), whose sum is σ = 6835046400. Its totient is φ = 697455360.

The previous prime is 2402221219. The next prime is 2402221231. The reversal of 2402221224 is 4221222042.

It is a self number, because there is not a number n which added to its sum of digits gives 2402221224.

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, 1842957 + ... + 1844259.

It is an arithmetic number, because the mean of its divisors is an integer number (53398800).

Almost surely, 2^2402221224 is an apocalyptic number.

2402221224 is a gapful number since it is divisible by the number (24) 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 2402221224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3417523200).

2402221224 is an abundant number, since it is smaller than the sum of its proper divisors (4432825176).

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

2402221224 is a wasteful number, since it uses less digits than its factorization.

2402221224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655 (or 1651 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 2402221224 is about 49012.4598852169. The cubic root of 2402221224 is about 1339.2788173973.

Adding to 2402221224 its reverse (4221222042), we get a palindrome (6623443266).

The spelling of 2402221224 in words is "two billion, four hundred two million, two hundred twenty-one thousand, two hundred twenty-four".