2124440220 has 48 divisors (see below), whose sum is σ = 6798210048. Its totient is φ = 485586240.

The previous prime is 2124440191. The next prime is 2124440239. The reversal of 2124440220 is 220444212.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2528676 + ... + 2529515.

It is an arithmetic number, because the mean of its divisors is an integer number (141629376).

Almost surely, 2^2124440220 is an apocalyptic number.

2124440220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124440220 is an abundant number, since it is smaller than the sum of its proper divisors (4673769828).

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

2124440220 is a wasteful number, since it uses less digits than its factorization.

2124440220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5058210 (or 5058208 counting only the distinct ones).

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

The square root of 2124440220 is about 46091.6502199693. The cubic root of 2124440220 is about 1285.5278950613.

Adding to 2124440220 its reverse (220444212), we get a palindrome (2344884432).

The spelling of 2124440220 in words is "two billion, one hundred twenty-four million, four hundred forty thousand, two hundred twenty".