12220112211222 has 64 divisors (see below), whose sum is σ = 25449825222144. Its totient is φ = 3908188051200.

The previous prime is 12220112211169. The next prime is 12220112211233. The reversal of 12220112211222 is 22211221102221.

It is a super-2 number, since 2×12220112211222² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81781863 + ... + 81931149.

It is an arithmetic number, because the mean of its divisors is an integer number (397653519096).

Almost surely, 2^{12220112211222} is an apocalyptic number.

12220112211222 is an abundant number, since it is smaller than the sum of its proper divisors (13229713010922).

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

12220112211222 is a wasteful number, since it uses less digits than its factorization.

12220112211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154453.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12220112211222 its reverse (22211221102221), we get a palindrome (34431333313443).

The spelling of 12220112211222 in words is "twelve trillion, two hundred twenty billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty-two".