21220300132223 has 8 divisors (see below), whose sum is σ = 21381221918880. Its totient is φ = 21059704429920.

The previous prime is 21220300132189. The next prime is 21220300132261. The reversal of 21220300132223 is 32223100302212.

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 21220300132223 - 2¹² = 21220300128127 is a prime.

It is a super-2 number, since 2×21220300132223² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220300132123) 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, 81390443 + ... + 81650748.

It is an arithmetic number, because the mean of its divisors is an integer number (2672652739860).

Almost surely, 2^{21220300132223} is an apocalyptic number.

21220300132223 is a deficient number, since it is larger than the sum of its proper divisors (160921786657).

21220300132223 is a wasteful number, since it uses less digits than its factorization.

21220300132223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163042177.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21220300132223 its reverse (32223100302212), we get a palindrome (53443400434435).

The spelling of 21220300132223 in words is "twenty-one trillion, two hundred twenty billion, three hundred million, one hundred thirty-two thousand, two hundred twenty-three".