1121440252 has 24 divisors (see below), whose sum is σ = 2080588160. Its totient is φ = 527964480.

The previous prime is 1121440231. The next prime is 1121440253. The reversal of 1121440252 is 2520441211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121440253) 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, 117627 + ... + 126802.

Almost surely, 2^1121440252 is an apocalyptic number.

It is an amenable number.

1121440252 is a deficient number, since it is larger than the sum of its proper divisors (959147908).

1121440252 is a wasteful number, since it uses less digits than its factorization.

1121440252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244501 (or 244499 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1121440252 is about 33487.9120280737. The cubic root of 1121440252 is about 1038.9437785054.

Adding to 1121440252 its reverse (2520441211), we get a palindrome (3641881463).

The spelling of 1121440252 in words is "one billion, one hundred twenty-one million, four hundred forty thousand, two hundred fifty-two".