21210133212302 has 8 divisors (see below), whose sum is σ = 32555088186456. Its totient is φ = 10358437150152.

The previous prime is 21210133212287. The next prime is 21210133212353. The reversal of 21210133212302 is 20321233101212.

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

It is a congruent number.

It is an unprimeable number.

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, 123314727893 + ... + 123314728064.

It is an arithmetic number, because the mean of its divisors is an integer number (4069386023307).

Almost surely, 2^{21210133212302} is an apocalyptic number.

21210133212302 is a deficient number, since it is larger than the sum of its proper divisors (11344954974154).

21210133212302 is a wasteful number, since it uses less digits than its factorization.

21210133212302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246629456002.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21210133212302 its reverse (20321233101212), we get a palindrome (41531366313514).

The spelling of 21210133212302 in words is "twenty-one trillion, two hundred ten billion, one hundred thirty-three million, two hundred twelve thousand, three hundred two".