221115162 has 16 divisors (see below), whose sum is σ = 445607712. Its totient is φ = 73142160.

The previous prime is 221115151. The next prime is 221115241. The reversal of 221115162 is 261511122.

221115162 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139873 + ... + 141444.

It is an arithmetic number, because the mean of its divisors is an integer number (27850482).

Almost surely, 2^221115162 is an apocalyptic number.

221115162 is an abundant number, since it is smaller than the sum of its proper divisors (224492550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221115162 is a wasteful number, since it uses less digits than its factorization.

221115162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281453.

The product of its digits is 240, while the sum is 21.

The square root of 221115162 is about 14869.9415600735. The cubic root of 221115162 is about 604.6993584024.

Adding to 221115162 its reverse (261511122), we get a palindrome (482626284).

The spelling of 221115162 in words is "two hundred twenty-one million, one hundred fifteen thousand, one hundred sixty-two".