221132122 has 8 divisors (see below), whose sum is σ = 331795872. Its totient is φ = 110533500.

The previous prime is 221132117. The next prime is 221132129. The reversal of 221132122 is 221231122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221132096 and 221132105.

It is not an unprimeable number, because it can be changed into a prime (221132129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6654 + ... + 22057.

It is an arithmetic number, because the mean of its divisors is an integer number (41474484).

Almost surely, 2^221132122 is an apocalyptic number.

221132122 is a deficient number, since it is larger than the sum of its proper divisors (110663750).

221132122 is a wasteful number, since it uses less digits than its factorization.

221132122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32564.

The product of its digits is 96, while the sum is 16.

The square root of 221132122 is about 14870.5118271027. The cubic root of 221132122 is about 604.7148185799.

Adding to 221132122 its reverse (221231122), we get a palindrome (442363244).

The spelling of 221132122 in words is "two hundred twenty-one million, one hundred thirty-two thousand, one hundred twenty-two".