221332111213 has 8 divisors (see below), whose sum is σ = 228479984640. Its totient is φ = 214184745840.

The previous prime is 221332111207. The next prime is 221332111237. The reversal of 221332111213 is 312111233122.

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 221332111213 - 2¹³ = 221332103021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221332111283) 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, 886956 + ... + 1108762.

It is an arithmetic number, because the mean of its divisors is an integer number (28559998080).

Almost surely, 2^221332111213 is an apocalyptic number.

It is an amenable number.

221332111213 is a deficient number, since it is larger than the sum of its proper divisors (7147873427).

221332111213 is a wasteful number, since it uses less digits than its factorization.

221332111213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254027.

The product of its digits is 432, while the sum is 22.

Adding to 221332111213 its reverse (312111233122), we get a palindrome (533443344335).

The spelling of 221332111213 in words is "two hundred twenty-one billion, three hundred thirty-two million, one hundred eleven thousand, two hundred thirteen".