9813220252 has 48 divisors (see below), whose sum is σ = 19408241664. Its totient is φ = 4301136000.

The previous prime is 9813220237. The next prime is 9813220259. The reversal of 9813220252 is 2520223189.

It is a super-3 number, since 3×9813220252³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9813220259) 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, 370483 + ... + 396085.

It is an arithmetic number, because the mean of its divisors is an integer number (404338368).

Almost surely, 2^9813220252 is an apocalyptic number.

It is an amenable number.

9813220252 is a deficient number, since it is larger than the sum of its proper divisors (9595021412).

9813220252 is a wasteful number, since it uses less digits than its factorization.

9813220252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25930 (or 25928 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 9813220252 is about 99061.6992182145. The cubic root of 9813220252 is about 2140.9368079401.

The spelling of 9813220252 in words is "nine billion, eight hundred thirteen million, two hundred twenty thousand, two hundred fifty-two".