11222112121222 has 8 divisors (see below), whose sum is σ = 17565045059376. Its totient is φ = 5367097101432.

The previous prime is 11222112121219. The next prime is 11222112121223. The reversal of 11222112121222 is 22212121122211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11222112121222² (a number of 27 digits) contains 22 as substring.

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 = 11222112121193 and 11222112121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222112121223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121979479533 + ... + 121979479624.

It is an arithmetic number, because the mean of its divisors is an integer number (2195630632422).

Almost surely, 2^{11222112121222} is an apocalyptic number.

11222112121222 is a deficient number, since it is larger than the sum of its proper divisors (6342932938154).

11222112121222 is a wasteful number, since it uses less digits than its factorization.

11222112121222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243958959182.

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

Adding to 11222112121222 its reverse (22212121122211), we get a palindrome (33434233243433).

The spelling of 11222112121222 in words is "eleven trillion, two hundred twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, two hundred twenty-two".