202234021 has 16 divisors (see below), whose sum is σ = 223257600. Its totient is φ = 181666800.

The previous prime is 202234013. The next prime is 202234033. The reversal of 202234021 is 120432202.

It is a cyclic number.

It is not a de Polignac number, because 202234021 - 2³ = 202234013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202233986 and 202234004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202234051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533410 + ... + 533788.

It is an arithmetic number, because the mean of its divisors is an integer number (13953600).

Almost surely, 2^202234021 is an apocalyptic number.

It is an amenable number.

202234021 is a deficient number, since it is larger than the sum of its proper divisors (21023579).

202234021 is a wasteful number, since it uses less digits than its factorization.

202234021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 202234021 is about 14220.9008505087. The cubic root of 202234021 is about 586.9729291855.

Adding to 202234021 its reverse (120432202), we get a palindrome (322666223).

The spelling of 202234021 in words is "two hundred two million, two hundred thirty-four thousand, twenty-one".