1122221110188 has 24 divisors (see below), whose sum is σ = 2618534420208. Its totient is φ = 374071061056.

The previous prime is 1122221110187. The next prime is 1122221110217. The reversal of 1122221110188 is 8810111222211.

It is not an unprimeable number, because it can be changed into a prime (1122221110187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2238370 + ... + 2693462.

It is an arithmetic number, because the mean of its divisors is an integer number (109105600842).

Almost surely, 2^{1122221110188} is an apocalyptic number.

It is an amenable number.

1122221110188 is an abundant number, since it is smaller than the sum of its proper divisors (1496313310020).

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

1122221110188 is a wasteful number, since it uses less digits than its factorization.

1122221110188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660593 (or 660591 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 30.

Adding to 1122221110188 its reverse (8810111222211), we get a palindrome (9932332332399).

The spelling of 1122221110188 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred ten thousand, one hundred eighty-eight".