21202302202 has 8 divisors (see below), whose sum is σ = 32579147412. Its totient is φ = 10342586400.

The previous prime is 21202302197. The next prime is 21202302203. The reversal of 21202302202 is 20220320212.

It can be written as a sum of positive squares in 2 ways, for example, as 13775482161 + 7426820041 = 117369^2 + 86179^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21202302203) 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, 129282249 + ... + 129282412.

Almost surely, 2^21202302202 is an apocalyptic number.

21202302202 is a deficient number, since it is larger than the sum of its proper divisors (11376845210).

21202302202 is a wasteful number, since it uses less digits than its factorization.

21202302202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258564704.

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

Adding to 21202302202 its reverse (20220320212), we get a palindrome (41422622414).

The spelling of 21202302202 in words is "twenty-one billion, two hundred two million, three hundred two thousand, two hundred two".