221242213223 has 8 divisors (see below), whose sum is σ = 224681230368. Its totient is φ = 217826832384.

The previous prime is 221242213163. The next prime is 221242213237. The reversal of 221242213223 is 322312242122.

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 221242213223 - 2¹⁰ = 221242212199 is a prime.

It is a super-2 number, since 2×221242213223² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221242213192 and 221242213201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221242213253) 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, 5890211 + ... + 5927652.

It is an arithmetic number, because the mean of its divisors is an integer number (28085153796).

Almost surely, 2^221242213223 is an apocalyptic number.

221242213223 is a deficient number, since it is larger than the sum of its proper divisors (3439017145).

221242213223 is a wasteful number, since it uses less digits than its factorization.

221242213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11818153.

The product of its digits is 4608, while the sum is 26.

Adding to 221242213223 its reverse (322312242122), we get a palindrome (543554455345).

The spelling of 221242213223 in words is "two hundred twenty-one billion, two hundred forty-two million, two hundred thirteen thousand, two hundred twenty-three".