229599299521 has 16 divisors (see below), whose sum is σ = 245324851200. Its totient is φ = 214243822800.

The previous prime is 229599299519. The next prime is 229599299537. The reversal of 229599299521 is 125992995922.

It is a cyclic number.

It is not a de Polignac number, because 229599299521 - 2¹ = 229599299519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229599299821) 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, 1319706 + ... + 1483516.

It is an arithmetic number, because the mean of its divisors is an integer number (15332803200).

Almost surely, 2^229599299521 is an apocalyptic number.

It is an amenable number.

229599299521 is a deficient number, since it is larger than the sum of its proper divisors (15725551679).

229599299521 is a wasteful number, since it uses less digits than its factorization.

229599299521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164940.

The product of its digits is 23619600, while the sum is 64.

The spelling of 229599299521 in words is "two hundred twenty-nine billion, five hundred ninety-nine million, two hundred ninety-nine thousand, five hundred twenty-one".