1123221213222 has 32 divisors (see below), whose sum is σ = 2331720029184. Its totient is φ = 360327592800.

The previous prime is 1123221213181. The next prime is 1123221213263. The reversal of 1123221213222 is 2223121223211.

It is an interprime number because it is at equal distance from previous prime (1123221213181) and next prime (1123221213263).

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 = 1123221213192 and 1123221213201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16648168 + ... + 16715499.

It is an arithmetic number, because the mean of its divisors is an integer number (72866250912).

Almost surely, 2^{1123221213222} is an apocalyptic number.

1123221213222 is an abundant number, since it is smaller than the sum of its proper divisors (1208498815962).

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

1123221213222 is a wasteful number, since it uses less digits than its factorization.

1123221213222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33363884.

The product of its digits is 1152, while the sum is 24.

Adding to 1123221213222 its reverse (2223121223211), we get a palindrome (3346342436433).

The spelling of 1123221213222 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-one million, two hundred thirteen thousand, two hundred twenty-two".