11221112111222 has 8 divisors (see below), whose sum is σ = 18126411872016. Its totient is φ = 5178974820552.

The previous prime is 11221112111189. The next prime is 11221112111269. The reversal of 11221112111222 is 22211121112211.

It is a happy number.

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

It is a super-2 number, since 2×11221112111222² (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 = 11221112111194 and 11221112111203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215790617498 + ... + 215790617549.

It is an arithmetic number, because the mean of its divisors is an integer number (2265801484002).

Almost surely, 2^{11221112111222} is an apocalyptic number.

11221112111222 is a deficient number, since it is larger than the sum of its proper divisors (6905299760794).

11221112111222 is a wasteful number, since it uses less digits than its factorization.

11221112111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431581235062.

The product of its digits is 64, while the sum is 20.

Adding to 11221112111222 its reverse (22211121112211), we get a palindrome (33432233223433).

The spelling of 11221112111222 in words is "eleven trillion, two hundred twenty-one billion, one hundred twelve million, one hundred eleven thousand, two hundred twenty-two".