21232200202 has 8 divisors (see below), whose sum is σ = 32009967396. Its totient is φ = 10562211072.

The previous prime is 21232200169. The next prime is 21232200217. The reversal of 21232200202 is 20200223212.

It can be written as a sum of positive squares in 2 ways, for example, as 21228781401 + 3418801 = 145701^2 + 1849^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26944023 + ... + 26944810.

Almost surely, 2^21232200202 is an apocalyptic number.

21232200202 is a deficient number, since it is larger than the sum of its proper divisors (10777767194).

21232200202 is a wasteful number, since it uses less digits than its factorization.

21232200202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53889032.

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

Adding to 21232200202 its reverse (20200223212), we get a palindrome (41432423414).

The spelling of 21232200202 in words is "twenty-one billion, two hundred thirty-two million, two hundred thousand, two hundred two".