1122043521 has 16 divisors (see below), whose sum is σ = 1510611264. Its totient is φ = 740788224.

The previous prime is 1122043519. The next prime is 1122043529. The reversal of 1122043521 is 1253402211.

It is not a de Polignac number, because 1122043521 - 2¹ = 1122043519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122043529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127165 + ... + 135701.

It is an arithmetic number, because the mean of its divisors is an integer number (94413204).

Almost surely, 2^1122043521 is an apocalyptic number.

It is an amenable number.

1122043521 is a deficient number, since it is larger than the sum of its proper divisors (388567743).

1122043521 is a wasteful number, since it uses less digits than its factorization.

1122043521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8960.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1122043521 is about 33496.9180821162. The cubic root of 1122043521 is about 1039.1300420237.

Adding to 1122043521 its reverse (1253402211), we get a palindrome (2375445732).

The spelling of 1122043521 in words is "one billion, one hundred twenty-two million, forty-three thousand, five hundred twenty-one".