2213236520 has 64 divisors (see below), whose sum is σ = 5437411200. Its totient is φ = 804084480.

The previous prime is 2213236517. The next prime is 2213236523. The reversal of 2213236520 is 256323122.

2213236520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2213236517) and next prime (2213236523).

It is a self number, because there is not a number n which added to its sum of digits gives 2213236520.

It is not an unprimeable number, because it can be changed into a prime (2213236523) 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, 825422 + ... + 828098.

It is an arithmetic number, because the mean of its divisors is an integer number (84959550).

Almost surely, 2^2213236520 is an apocalyptic number.

2213236520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2213236520 is an abundant number, since it is smaller than the sum of its proper divisors (3224174680).

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

2213236520 is a wasteful number, since it uses less digits than its factorization.

2213236520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4578 (or 4574 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2213236520 is about 47045.0477733842. The cubic root of 2213236520 is about 1303.1946125748.

Adding to 2213236520 its reverse (256323122), we get a palindrome (2469559642).

The spelling of 2213236520 in words is "two billion, two hundred thirteen million, two hundred thirty-six thousand, five hundred twenty".