221231133332 has 48 divisors (see below), whose sum is σ = 436169416704. Its totient is φ = 97272252000.

The previous prime is 221231133323. The next prime is 221231133349. The reversal of 221231133332 is 233331132122.

It is a super-2 number, since 2×221231133332² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3117113 + ... + 3187295.

It is an arithmetic number, because the mean of its divisors is an integer number (9086862848).

Almost surely, 2^221231133332 is an apocalyptic number.

221231133332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

221231133332 is a deficient number, since it is larger than the sum of its proper divisors (214938283372).

221231133332 is a wasteful number, since it uses less digits than its factorization.

221231133332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72540 (or 72538 counting only the distinct ones).

The product of its digits is 3888, while the sum is 26.

Adding to 221231133332 its reverse (233331132122), we get a palindrome (454562265454).

The spelling of 221231133332 in words is "two hundred twenty-one billion, two hundred thirty-one million, one hundred thirty-three thousand, three hundred thirty-two".