1121458212 has 72 divisors (see below), whose sum is σ = 3242849792. Its totient is φ = 320112000.

The previous prime is 1121458183. The next prime is 1121458237. The reversal of 1121458212 is 2128541211.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 490512 + ... + 492792.

Almost surely, 2^1121458212 is an apocalyptic number.

1121458212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121458212 is an abundant number, since it is smaller than the sum of its proper divisors (2121391580).

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

1121458212 is a wasteful number, since it uses less digits than its factorization.

1121458212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249 (or 4244 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 1121458212 is about 33488.1801834617. The cubic root of 1121458212 is about 1038.9493247455.

Adding to 1121458212 its reverse (2128541211), we get a palindrome (3249999423).

The spelling of 1121458212 in words is "one billion, one hundred twenty-one million, four hundred fifty-eight thousand, two hundred twelve".