1121244212 has 48 divisors (see below), whose sum is σ = 2178731520. Its totient is φ = 500623200.

The previous prime is 1121244209. The next prime is 1121244217. The reversal of 1121244212 is 2124421211.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121244217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1183523 + ... + 1184469.

It is an arithmetic number, because the mean of its divisors is an integer number (45390240).

Almost surely, 2^1121244212 is an apocalyptic number.

It is an amenable number.

1121244212 is a deficient number, since it is larger than the sum of its proper divisors (1057487308).

1121244212 is a wasteful number, since it uses less digits than its factorization.

1121244212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412 (or 1410 counting only the distinct ones).

The product of its digits is 256, while the sum is 20.

The square root of 1121244212 is about 33484.9848738207. The cubic root of 1121244212 is about 1038.8832354055.

Adding to 1121244212 its reverse (2124421211), we get a palindrome (3245665423).

It can be divided in two parts, 11 and 21244212, that multiplied together give a palindrome (233686332).

The spelling of 1121244212 in words is "one billion, one hundred twenty-one million, two hundred forty-four thousand, two hundred twelve".