229424424921 has 96 divisors (see below), whose sum is σ = 365569666560. Its totient is φ = 142053004800.

The previous prime is 229424424917. The next prime is 229424424923. The reversal of 229424424921 is 129424424922.

It is not a de Polignac number, because 229424424921 - 2² = 229424424917 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (229424424923) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 71226091 + ... + 71229311.

It is an arithmetic number, because the mean of its divisors is an integer number (3808017360).

Almost surely, 2^229424424921 is an apocalyptic number.

It is an amenable number.

229424424921 is a deficient number, since it is larger than the sum of its proper divisors (136145241639).

229424424921 is a wasteful number, since it uses less digits than its factorization.

229424424921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392 (or 3349 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

Subtracting from 229424424921 its reverse (129424424922), we obtain a palindrome (99999999999).

The spelling of 229424424921 in words is "two hundred twenty-nine billion, four hundred twenty-four million, four hundred twenty-four thousand, nine hundred twenty-one".