11222112222122 has 16 divisors (see below), whose sum is σ = 16853735933352. Its totient is φ = 5604204365760.

The previous prime is 11222112222121. The next prime is 11222112222127. The reversal of 11222112222122 is 22122221122211.

It can be written as a sum of positive squares in 4 ways, for example, as 11030442506521 + 191669715601 = 3321211^2 + 437801^2 .

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 (11222112222121) 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, 4425872 + ... + 6483252.

Almost surely, 2^{11222112222122} is an apocalyptic number.

11222112222122 is a deficient number, since it is larger than the sum of its proper divisors (5631623711230).

11222112222122 is a wasteful number, since it uses less digits than its factorization.

11222112222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060713.

The product of its digits is 512, while the sum is 23.

Adding to 11222112222122 its reverse (22122221122211), we get a palindrome (33344333344333).

The spelling of 11222112222122 in words is "eleven trillion, two hundred twenty-two billion, one hundred twelve million, two hundred twenty-two thousand, one hundred twenty-two".