21130020022223 has 8 divisors (see below), whose sum is σ = 24152875262880. Its totient is φ = 18108235019520.

The previous prime is 21130020022219. The next prime is 21130020022249. The reversal of 21130020022223 is 32222002003112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21130020022223 - 2² = 21130020022219 is a prime.

It is a super-2 number, since 2×21130020022223² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21130020022195 and 21130020022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130020027223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267517178 + ... + 267596151.

It is an arithmetic number, because the mean of its divisors is an integer number (3019109407860).

Almost surely, 2^{21130020022223} is an apocalyptic number.

21130020022223 is a deficient number, since it is larger than the sum of its proper divisors (3022855240657).

21130020022223 is an equidigital number, since it uses as much as digits as its factorization.

21130020022223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535118977.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21130020022223 its reverse (32222002003112), we get a palindrome (53352022025335).

The spelling of 21130020022223 in words is "twenty-one trillion, one hundred thirty billion, twenty million, twenty-two thousand, two hundred twenty-three".