21222132010202 has 8 divisors (see below), whose sum is σ = 31918541710836. Its totient is φ = 10582618106592.

The previous prime is 21222132010201. The next prime is 21222132010241. The reversal of 21222132010202 is 20201023122212.

It can be written as a sum of positive squares in 2 ways, for example, as 18802274873281 + 2419857136921 = 4336159^2 + 1555589^2 .

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 (21222132010201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14223948323 + ... + 14223949814.

Almost surely, 2^{21222132010202} is an apocalyptic number.

21222132010202 is a deficient number, since it is larger than the sum of its proper divisors (10696409700634).

21222132010202 is a wasteful number, since it uses less digits than its factorization.

21222132010202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28447898512.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 21222132010202 its reverse (20201023122212), we get a palindrome (41423155132414).

The spelling of 21222132010202 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred thirty-two million, ten thousand, two hundred two".