12210210111222 has 12 divisors (see below), whose sum is σ = 26455455241020. Its totient is φ = 4070070037068.

The previous prime is 12210210111199. The next prime is 12210210111269. The reversal of 12210210111222 is 22211101201221.

12210210111222 is a `hidden beast` number, since 1 + 221 + 0 + 210 + 1 + 11 + 222 = 666.

It is a super-2 number, since 2×12210210111222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 678345006179 = 12210210111222 / (1 + 2 + 2 + 1 + 0 + 2 + 1 + 0 + 1 + 1 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 12210210111195 and 12210210111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 339172503072 + ... + 339172503107.

It is an arithmetic number, because the mean of its divisors is an integer number (2204621270085).

Almost surely, 2^{12210210111222} is an apocalyptic number.

12210210111222 is an abundant number, since it is smaller than the sum of its proper divisors (14245245129798).

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

12210210111222 is a wasteful number, since it uses less digits than its factorization.

12210210111222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678345006187 (or 678345006184 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12210210111222 its reverse (22211101201221), we get a palindrome (34421311312443).

The spelling of 12210210111222 in words is "twelve trillion, two hundred ten billion, two hundred ten million, one hundred eleven thousand, two hundred twenty-two".