21476522223317 has 8 divisors (see below), whose sum is σ = 24840314861376. Its totient is φ = 18186659093952.

The previous prime is 21476522223283. The next prime is 21476522223361. The reversal of 21476522223317 is 71332222567412.

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 21476522223317 - 2²⁴ = 21476505446101 is a prime.

It is a super-2 number, since 2×21476522223317² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21476522223517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18482376548 + ... + 18482377709.

It is an arithmetic number, because the mean of its divisors is an integer number (3105039357672).

Almost surely, 2^{21476522223317} is an apocalyptic number.

It is an amenable number.

21476522223317 is a deficient number, since it is larger than the sum of its proper divisors (3363792638059).

21476522223317 is an equidigital number, since it uses as much as digits as its factorization.

21476522223317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36964754347.

The product of its digits is 1693440, while the sum is 47.

The spelling of 21476522223317 in words is "twenty-one trillion, four hundred seventy-six billion, five hundred twenty-two million, two hundred twenty-three thousand, three hundred seventeen".