1122221110218 has 32 divisors (see below), whose sum is σ = 2419892568576. Its totient is φ = 344898667968.

The previous prime is 1122221110217. The next prime is 1122221110229. The reversal of 1122221110218 is 8120111222211.

It is not an unprimeable number, because it can be changed into a prime (1122221110217) 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 15 ways as a sum of consecutive naturals, for example, 8268405 + ... + 8403032.

It is an arithmetic number, because the mean of its divisors is an integer number (75621642768).

Almost surely, 2^{1122221110218} is an apocalyptic number.

1122221110218 is an abundant number, since it is smaller than the sum of its proper divisors (1297671458358).

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

1122221110218 is a wasteful number, since it uses less digits than its factorization.

1122221110218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16672318.

The product of its (nonzero) digits is 256, while the sum is 24.

Adding to 1122221110218 its reverse (8120111222211), we get a palindrome (9242332332429).

The spelling of 1122221110218 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred ten thousand, two hundred eighteen".