11121222112222 has 16 divisors (see below), whose sum is σ = 16926843499344. Its totient is φ = 5479462800000.

The previous prime is 11121222112213. The next prime is 11121222112261. The reversal of 11121222112222 is 22221122212111.

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

It is a junction number, because it is equal to n+sod(n) for n = 11121222112193 and 11121222112202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130420779 + ... + 130506022.

It is an arithmetic number, because the mean of its divisors is an integer number (1057927718709).

Almost surely, 2^{11121222112222} is an apocalyptic number.

11121222112222 is a deficient number, since it is larger than the sum of its proper divisors (5805621387122).

11121222112222 is a wasteful number, since it uses less digits than its factorization.

11121222112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260927115.

The product of its digits is 256, while the sum is 22.

Adding to 11121222112222 its reverse (22221122212111), we get a palindrome (33342344324333).

The spelling of 11121222112222 in words is "eleven trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twenty-two".