21213560223022 has 8 divisors (see below), whose sum is σ = 31820772421872. Its totient is φ = 10606636082400.

The previous prime is 21213560223013. The next prime is 21213560223133. The reversal of 21213560223022 is 22032206531212.

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, 71830354 + ... + 72125077.

It is an arithmetic number, because the mean of its divisors is an integer number (3977596552734).

Almost surely, 2^{21213560223022} is an apocalyptic number.

21213560223022 is a deficient number, since it is larger than the sum of its proper divisors (10607212198850).

21213560223022 is a wasteful number, since it uses less digits than its factorization.

21213560223022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144029114.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 21213560223022 its reverse (22032206531212), we get a palindrome (43245766754234).

The spelling of 21213560223022 in words is "twenty-one trillion, two hundred thirteen billion, five hundred sixty million, two hundred twenty-three thousand, twenty-two".