202243121424 has 30 divisors (see below), whose sum is σ = 565999847166. Its totient is φ = 67414373760.

The previous prime is 202243121407. The next prime is 202243121449. The reversal of 202243121424 is 424121342202.

It is a happy number.

202243121424 is a `hidden beast` number, since 2 + 0 + 224 + 3 + 12 + 1 + 424 = 666.

It can be written as a sum of positive squares in only one way, i.e., 111377047824 + 90866073600 = 333732^2 + 301440^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 702232917 + ... + 702233204.

Almost surely, 2^202243121424 is an apocalyptic number.

202243121424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

202243121424 is an abundant number, since it is smaller than the sum of its proper divisors (363756725742).

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

202243121424 is a wasteful number, since it uses less digits than its factorization.

202243121424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404466135 (or 1404466126 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 202243121424 its reverse (424121342202), we get a palindrome (626364463626).

The spelling of 202243121424 in words is "two hundred two billion, two hundred forty-three million, one hundred twenty-one thousand, four hundred twenty-four".