12011222212222 has 8 divisors (see below), whose sum is σ = 18017042450976. Its totient is φ = 6005541395232.

The previous prime is 12011222212219. The next prime is 12011222212237. The reversal of 12011222212222 is 22221222211021.

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

It is a junction number, because it is equal to n+sod(n) for n = 12011222212193 and 12011222212202.

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 3 ways as a sum of consecutive naturals, for example, 34639798 + ... + 34984825.

It is an arithmetic number, because the mean of its divisors is an integer number (2252130306372).

Almost surely, 2^{12011222212222} is an apocalyptic number.

12011222212222 is a deficient number, since it is larger than the sum of its proper divisors (6005820238754).

12011222212222 is an equidigital number, since it uses as much as digits as its factorization.

12011222212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69710882.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12011222212222 its reverse (22221222211021), we get a palindrome (34232444423243).

The spelling of 12011222212222 in words is "twelve trillion, eleven billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty-two".