202400224221 has 48 divisors (see below), whose sum is σ = 301900687872. Its totient is φ = 119777616000.

The previous prime is 202400224217. The next prime is 202400224253. The reversal of 202400224221 is 122422004202.

It is not a de Polignac number, because 202400224221 - 2² = 202400224217 is a prime.

It is a super-2 number, since 2×202400224221² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202400224261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32118771 + ... + 32125071.

It is an arithmetic number, because the mean of its divisors is an integer number (6289597664).

Almost surely, 2^202400224221 is an apocalyptic number.

It is an amenable number.

202400224221 is a deficient number, since it is larger than the sum of its proper divisors (99500463651).

202400224221 is a wasteful number, since it uses less digits than its factorization.

202400224221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6674 (or 6511 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 202400224221 its reverse (122422004202), we get a palindrome (324822228423).

The spelling of 202400224221 in words is "two hundred two billion, four hundred million, two hundred twenty-four thousand, two hundred twenty-one".