21213321232102 has 8 divisors (see below), whose sum is σ = 31820254636896. Its totient is φ = 10606569686472.

The previous prime is 21213321232067. The next prime is 21213321232151. The reversal of 21213321232102 is 20123212331212.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45172798 + ... + 45639985.

It is an arithmetic number, because the mean of its divisors is an integer number (3977531829612).

Almost surely, 2^{21213321232102} is an apocalyptic number.

21213321232102 is a deficient number, since it is larger than the sum of its proper divisors (10606933404794).

21213321232102 is a wasteful number, since it uses less digits than its factorization.

21213321232102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90929582.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21213321232102 its reverse (20123212331212), we get a palindrome (41336533563314).

The spelling of 21213321232102 in words is "twenty-one trillion, two hundred thirteen billion, three hundred twenty-one million, two hundred thirty-two thousand, one hundred two".