21220036063323 has 48 divisors (see below), whose sum is σ = 29587325564928. Its totient is φ = 13524432134400.

The previous prime is 21220036063319. The next prime is 21220036063333. The reversal of 21220036063323 is 32336063002212.

It is not a de Polignac number, because 21220036063323 - 2² = 21220036063319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21220036063333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64370865 + ... + 64699677.

It is an arithmetic number, because the mean of its divisors is an integer number (616402615936).

Almost surely, 2^{21220036063323} is an apocalyptic number.

21220036063323 is a deficient number, since it is larger than the sum of its proper divisors (8367289501605).

21220036063323 is a wasteful number, since it uses less digits than its factorization.

21220036063323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329156 (or 329115 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 33.

Adding to 21220036063323 its reverse (32336063002212), we get a palindrome (53556099065535).

The spelling of 21220036063323 in words is "twenty-one trillion, two hundred twenty billion, thirty-six million, sixty-three thousand, three hundred twenty-three".