221334133507 has 8 divisors (see below), whose sum is σ = 223504169616. Its totient is φ = 219173721312.

The previous prime is 221334133483. The next prime is 221334133511. The reversal of 221334133507 is 705331433122.

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 221334133507 - 2²⁷ = 221199915779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221334133597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2359753 + ... + 2451754.

It is an arithmetic number, because the mean of its divisors is an integer number (27938021202).

Almost surely, 2^221334133507 is an apocalyptic number.

221334133507 is a deficient number, since it is larger than the sum of its proper divisors (2170036109).

221334133507 is a wasteful number, since it uses less digits than its factorization.

221334133507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811957.

The product of its (nonzero) digits is 45360, while the sum is 34.

Adding to 221334133507 its reverse (705331433122), we get a palindrome (926665566629).

The spelling of 221334133507 in words is "two hundred twenty-one billion, three hundred thirty-four million, one hundred thirty-three thousand, five hundred seven".