1122004812 has 12 divisors (see below), whose sum is σ = 2618011256. Its totient is φ = 374001600.

The previous prime is 1122004787. The next prime is 1122004813. The reversal of 1122004812 is 2184002211.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1122004813) 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, 46750189 + ... + 46750212.

Almost surely, 2^1122004812 is an apocalyptic number.

1122004812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1122004812 is an abundant number, since it is smaller than the sum of its proper divisors (1496006444).

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

1122004812 is a wasteful number, since it uses less digits than its factorization.

1122004812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93500408 (or 93500406 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 1122004812 is about 33496.3402777080. The cubic root of 1122004812 is about 1039.1180923543.

The spelling of 1122004812 in words is "one billion, one hundred twenty-two million, four thousand, eight hundred twelve".