111221132 has 12 divisors (see below), whose sum is σ = 212331336. Its totient is φ = 50555040.

The previous prime is 111221101. The next prime is 111221141. The reversal of 111221132 is 231122111.

It is a super-2 number, since 2×111221132² = 24740280406722848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1263833 + ... + 1263920.

It is an arithmetic number, because the mean of its divisors is an integer number (17694278).

Almost surely, 2^111221132 is an apocalyptic number.

It is an amenable number.

111221132 is a deficient number, since it is larger than the sum of its proper divisors (101110204).

111221132 is a wasteful number, since it uses less digits than its factorization.

111221132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527768 (or 2527766 counting only the distinct ones).

The product of its digits is 24, while the sum is 14.

The square root of 111221132 is about 10546.1429916344. The cubic root of 111221132 is about 480.9084820041.

Adding to 111221132 its reverse (231122111), we get a palindrome (342343243).

The spelling of 111221132 in words is "one hundred eleven million, two hundred twenty-one thousand, one hundred thirty-two".