1122221221122 has 16 divisors (see below), whose sum is σ = 2248545634272. Its totient is φ = 373389875040.

The previous prime is 1122221221091. The next prime is 1122221221129. The reversal of 1122221221122 is 2211221222211.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1122221221129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170962779 + ... + 170969342.

It is an arithmetic number, because the mean of its divisors is an integer number (140534102142).

Almost surely, 2^{1122221221122} is an apocalyptic number.

1122221221122 is an abundant number, since it is smaller than the sum of its proper divisors (1126324413150).

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

1122221221122 is a wasteful number, since it uses less digits than its factorization.

1122221221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341932673.

The product of its digits is 256, while the sum is 21.

Adding to 1122221221122 its reverse (2211221222211), we get a palindrome (3333442443333).

The spelling of 1122221221122 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".