1122143242 has 32 divisors (see below), whose sum is σ = 1980967104. Its totient is φ = 470995200.

The previous prime is 1122143233. The next prime is 1122143257. The reversal of 1122143242 is 2423412211.

It is a Harshad number since it is a multiple of its sum of digits (22).

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 15 ways as a sum of consecutive naturals, for example, 8484 + ... + 48127.

It is an arithmetic number, because the mean of its divisors is an integer number (61905222).

Almost surely, 2^1122143242 is an apocalyptic number.

1122143242 is a deficient number, since it is larger than the sum of its proper divisors (858823862).

1122143242 is a wasteful number, since it uses less digits than its factorization.

1122143242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56694.

The product of its digits is 768, while the sum is 22.

The square root of 1122143242 is about 33498.4065591186. The cubic root of 1122143242 is about 1039.1608251485.

Adding to 1122143242 its reverse (2423412211), we get a palindrome (3545555453).

The spelling of 1122143242 in words is "one billion, one hundred twenty-two million, one hundred forty-three thousand, two hundred forty-two".