1121144242 has 16 divisors (see below), whose sum is σ = 1695456000. Its totient is φ = 556003440.

The previous prime is 1121144239. The next prime is 1121144257. The reversal of 1121144242 is 2424411211.

It is a super-2 number, since 2×1121144242² = 2513928822739509128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239359 + ... + 243997.

It is an arithmetic number, because the mean of its divisors is an integer number (105966000).

Almost surely, 2^1121144242 is an apocalyptic number.

1121144242 is a deficient number, since it is larger than the sum of its proper divisors (574311758).

1121144242 is a wasteful number, since it uses less digits than its factorization.

1121144242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5601.

The product of its digits is 512, while the sum is 22.

The square root of 1121144242 is about 33483.4920819200. The cubic root of 1121144242 is about 1038.8523589194.

Adding to 1121144242 its reverse (2424411211), we get a palindrome (3545555453).

The spelling of 1121144242 in words is "one billion, one hundred twenty-one million, one hundred forty-four thousand, two hundred forty-two".