12212222031222 has 32 divisors (see below), whose sum is σ = 24591232364544. Its totient is φ = 4043010182400.

The previous prime is 12212222031199. The next prime is 12212222031223. The reversal of 12212222031222 is 22213022221221.

It is a junction number, because it is equal to n+sod(n) for n = 12212222031192 and 12212222031201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212222031223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7720923 + ... + 9167174.

It is an arithmetic number, because the mean of its divisors is an integer number (768476011392).

Almost surely, 2^{12212222031222} is an apocalyptic number.

12212222031222 is an abundant number, since it is smaller than the sum of its proper divisors (12379010333322).

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

12212222031222 is a wasteful number, since it uses less digits than its factorization.

12212222031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16888924.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12212222031222 its reverse (22213022221221), we get a palindrome (34425244252443).

The spelling of 12212222031222 in words is "twelve trillion, two hundred twelve billion, two hundred twenty-two million, thirty-one thousand, two hundred twenty-two".