221332423013 has 16 divisors (see below), whose sum is σ = 238642989312. Its totient is φ = 204062760000.

The previous prime is 221332423007. The next prime is 221332423027. The reversal of 221332423013 is 310324233122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 221332423013 - 2³⁰ = 220258681189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221332423033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67048463 + ... + 67051763.

It is an arithmetic number, because the mean of its divisors is an integer number (14915186832).

Almost surely, 2^221332423013 is an apocalyptic number.

It is an amenable number.

221332423013 is a deficient number, since it is larger than the sum of its proper divisors (17310566299).

221332423013 is a wasteful number, since it uses less digits than its factorization.

221332423013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7916.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 221332423013 its reverse (310324233122), we get a palindrome (531656656135).

The spelling of 221332423013 in words is "two hundred twenty-one billion, three hundred thirty-two million, four hundred twenty-three thousand, thirteen".