111215132 has 48 divisors (see below), whose sum is σ = 235200000. Its totient is φ = 44950464.

The previous prime is 111215131. The next prime is 111215141. The reversal of 111215132 is 231512111.

It is a self number, because there is not a number n which added to its sum of digits gives 111215132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111215131) 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, 185369 + ... + 185967.

It is an arithmetic number, because the mean of its divisors is an integer number (4900000).

Almost surely, 2^111215132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111215132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117600000).

111215132 is an abundant number, since it is smaller than the sum of its proper divisors (123984868).

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

111215132 is a wasteful number, since it uses less digits than its factorization.

111215132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 976 counting only the distinct ones).

The product of its digits is 60, while the sum is 17.

The square root of 111215132 is about 10545.8585236101. The cubic root of 111215132 is about 480.8998340589.

Adding to 111215132 its reverse (231512111), we get a palindrome (342727243).

The spelling of 111215132 in words is "one hundred eleven million, two hundred fifteen thousand, one hundred thirty-two".