1121221011108 has 72 divisors (see below), whose sum is σ = 3044793731616. Its totient is φ = 319777821440.

The previous prime is 1121221011107. The next prime is 1121221011137. The reversal of 1121221011108 is 8011101221211.

It is not an unprimeable number, because it can be changed into a prime (1121221011107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22686810 + ... + 22736177.

It is an arithmetic number, because the mean of its divisors is an integer number (42288801828).

Almost surely, 2^{1121221011108} is an apocalyptic number.

It is an amenable number.

1121221011108 is an abundant number, since it is smaller than the sum of its proper divisors (1923572720508).

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

1121221011108 is a wasteful number, since it uses less digits than its factorization.

1121221011108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45423033 (or 45423020 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 21.

Adding to 1121221011108 its reverse (8011101221211), we get a palindrome (9132322232319).

The spelling of 1121221011108 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, eleven thousand, one hundred eight".