1151121224 has 16 divisors (see below), whose sum is σ = 2354566320. Its totient is φ = 523236880.

The previous prime is 1151121217. The next prime is 1151121229. The reversal of 1151121224 is 4221211511.

It is a junction number, because it is equal to n+sod(n) for n = 1151121196 and 1151121205.

It is not an unprimeable number, because it can be changed into a prime (1151121229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6540374 + ... + 6540549.

It is an arithmetic number, because the mean of its divisors is an integer number (147160395).

Almost surely, 2^1151121224 is an apocalyptic number.

It is an amenable number.

1151121224 is an abundant number, since it is smaller than the sum of its proper divisors (1203445096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1151121224 is a wasteful number, since it uses less digits than its factorization.

1151121224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13080940 (or 13080936 counting only the distinct ones).

The product of its digits is 160, while the sum is 20.

The square root of 1151121224 is about 33928.1774341034. The cubic root of 1151121224 is about 1048.0299337836.

Adding to 1151121224 its reverse (4221211511), we get a palindrome (5372332735).

The spelling of 1151121224 in words is "one billion, one hundred fifty-one million, one hundred twenty-one thousand, two hundred twenty-four".