2421113220 has 48 divisors (see below), whose sum is σ = 7532353920. Its totient is φ = 645630048.

The previous prime is 2421113179. The next prime is 2421113231. The reversal of 2421113220 is 223111242.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2421113193 and 2421113202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2241232 + ... + 2242311.

It is an arithmetic number, because the mean of its divisors is an integer number (156924040).

Almost surely, 2^2421113220 is an apocalyptic number.

2421113220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2421113220 is an abundant number, since it is smaller than the sum of its proper divisors (5111240700).

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

2421113220 is a wasteful number, since it uses less digits than its factorization.

2421113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483561 (or 4483553 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2421113220 is about 49204.8089113249. The cubic root of 2421113220 is about 1342.7805225097.

Adding to 2421113220 its reverse (223111242), we get a palindrome (2644224462).

The spelling of 2421113220 in words is "two billion, four hundred twenty-one million, one hundred thirteen thousand, two hundred twenty".