1142211132 has 60 divisors (see below), whose sum is σ = 2989266280. Its totient is φ = 380316384.

The previous prime is 1142211097. The next prime is 1142211157. The reversal of 1142211132 is 2311122411.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 461763 + ... + 464229.

Almost surely, 2^1142211132 is an apocalyptic number.

1142211132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142211132 is an abundant number, since it is smaller than the sum of its proper divisors (1847055148).

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

1142211132 is a wasteful number, since it uses less digits than its factorization.

1142211132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912 (or 3901 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1142211132 is about 33796.6142091186. The cubic root of 1142211132 is about 1045.3188840850.

Adding to 1142211132 its reverse (2311122411), we get a palindrome (3453333543).

The spelling of 1142211132 in words is "one billion, one hundred forty-two million, two hundred eleven thousand, one hundred thirty-two".