1121445516 has 12 divisors (see below), whose sum is σ = 2616706232. Its totient is φ = 373815168.

The previous prime is 1121445499. The next prime is 1121445517. The reversal of 1121445516 is 6155441211.

1121445516 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 (1121445517) 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, 46726885 + ... + 46726908.

Almost surely, 2^1121445516 is an apocalyptic number.

It is an amenable number.

1121445516 is an abundant number, since it is smaller than the sum of its proper divisors (1495260716).

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

1121445516 is a wasteful number, since it uses less digits than its factorization.

1121445516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93453800 (or 93453798 counting only the distinct ones).

The product of its digits is 4800, while the sum is 30.

The square root of 1121445516 is about 33487.9906235056. The cubic root of 1121445516 is about 1038.9454040910.

Adding to 1121445516 its reverse (6155441211), we get a palindrome (7276886727).

The spelling of 1121445516 in words is "one billion, one hundred twenty-one million, four hundred forty-five thousand, five hundred sixteen".