1115531212 has 6 divisors (see below), whose sum is σ = 1952179628. Its totient is φ = 557765604.

The previous prime is 1115531191. The next prime is 1115531237. The reversal of 1115531212 is 2121355111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139441398 + ... + 139441405.

Almost surely, 2^1115531212 is an apocalyptic number.

It is an amenable number.

1115531212 is a deficient number, since it is larger than the sum of its proper divisors (836648416).

1115531212 is a wasteful number, since it uses less digits than its factorization.

1115531212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278882807 (or 278882805 counting only the distinct ones).

The product of its digits is 300, while the sum is 22.

The square root of 1115531212 is about 33399.5690391358. The cubic root of 1115531212 is about 1037.1157795745.

Adding to 1115531212 its reverse (2121355111), we get a palindrome (3236886323).

The spelling of 1115531212 in words is "one billion, one hundred fifteen million, five hundred thirty-one thousand, two hundred twelve".