1121178252 has 24 divisors (see below), whose sum is σ = 2616707632. Its totient is φ = 373636800.

The previous prime is 1121178241. The next prime is 1121178257. The reversal of 1121178252 is 2528711211.

It is not an unprimeable number, because it can be changed into a prime (1121178257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58602 + ... + 75342.

Almost surely, 2^1121178252 is an apocalyptic number.

1121178252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121178252 is an abundant number, since it is smaller than the sum of its proper divisors (1495529380).

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

1121178252 is a wasteful number, since it uses less digits than its factorization.

1121178252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22329 (or 22327 counting only the distinct ones).

The product of its digits is 2240, while the sum is 30.

The square root of 1121178252 is about 33483.9999402700. Note that the first 4 decimals coincide. The cubic root of 1121178252 is about 1038.8628633696.

Adding to 1121178252 its reverse (2528711211), we get a palindrome (3649889463).

The spelling of 1121178252 in words is "one billion, one hundred twenty-one million, one hundred seventy-eight thousand, two hundred fifty-two".