2465221220 has 48 divisors (see below), whose sum is σ = 6454401408. Its totient is φ = 768380160.

The previous prime is 2465221217. The next prime is 2465221271. The reversal of 2465221220 is 221225642.

It is a self number, because there is not a number n which added to its sum of digits gives 2465221220.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 798857 + ... + 801936.

It is an arithmetic number, because the mean of its divisors is an integer number (134466696).

Almost surely, 2^2465221220 is an apocalyptic number.

2465221220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2465221220 is an abundant number, since it is smaller than the sum of its proper divisors (3989180188).

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

2465221220 is a wasteful number, since it uses less digits than its factorization.

2465221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600820 (or 1600818 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2465221220 is about 49650.9941491608. The cubic root of 2465221220 is about 1350.8857872150.

Adding to 2465221220 its reverse (221225642), we get a palindrome (2686446862).

It can be divided in two parts, 246522 and 1220, that added together give a palindrome (247742).

The spelling of 2465221220 in words is "two billion, four hundred sixty-five million, two hundred twenty-one thousand, two hundred twenty".