8202234921 has 4 divisors (see below), whose sum is σ = 10936313232. Its totient is φ = 5468156612.

The previous prime is 8202234917. The next prime is 8202234973. The reversal of 8202234921 is 1294322028.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8202234921 - 2² = 8202234917 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8202234121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1367039151 + ... + 1367039156.

It is an arithmetic number, because the mean of its divisors is an integer number (2734078308).

Almost surely, 2^8202234921 is an apocalyptic number.

It is an amenable number.

8202234921 is a deficient number, since it is larger than the sum of its proper divisors (2734078311).

8202234921 is a wasteful number, since it uses less digits than its factorization.

8202234921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2734078310.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 8202234921 is about 90566.1908274826. The cubic root of 8202234921 is about 2016.7128611993.

Adding to 8202234921 its reverse (1294322028), we get a palindrome (9496556949).

The spelling of 8202234921 in words is "eight billion, two hundred two million, two hundred thirty-four thousand, nine hundred twenty-one".