1121122210056 has 16 divisors (see below), whose sum is σ = 2802805525200. Its totient is φ = 373707403344.

The previous prime is 1121122210009. The next prime is 1121122210057. The reversal of 1121122210056 is 6500122211211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 46713425419 = 1121122210056 / (1 + 1 + 2 + 1 + 1 + 2 + 2 + 2 + 1 + 0 + 0 + 5 + 6).

It is not an unprimeable number, because it can be changed into a prime (1121122210057) 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, 23356712686 + ... + 23356712733.

It is an arithmetic number, because the mean of its divisors is an integer number (175175345325).

Almost surely, 2^{1121122210056} is an apocalyptic number.

It is an amenable number.

1121122210056 is an abundant number, since it is smaller than the sum of its proper divisors (1681683315144).

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

1121122210056 is a wasteful number, since it uses less digits than its factorization.

1121122210056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46713425428 (or 46713425424 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

Adding to 1121122210056 its reverse (6500122211211), we get a palindrome (7621244421267).

The spelling of 1121122210056 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred ten thousand, fifty-six".