12212201111123 has 16 divisors (see below), whose sum is σ = 13741880463360. Its totient is φ = 10768166691744.

The previous prime is 12212201111101. The next prime is 12212201111203. The reversal of 12212201111123 is 32111110221221.

It is a cyclic number.

It is not a de Polignac number, because 12212201111123 - 2⁶ = 12212201111059 is a prime.

It is a super-2 number, since 2×12212201111123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12212201111095 and 12212201111104.

It is not an unprimeable number, because it can be changed into a prime (12212201116123) 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, 27263363 + ... + 27707676.

It is an arithmetic number, because the mean of its divisors is an integer number (858867528960).

Almost surely, 2^{12212201111123} is an apocalyptic number.

12212201111123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12212201111123 is a deficient number, since it is larger than the sum of its proper divisors (1529679352237).

12212201111123 is a wasteful number, since it uses less digits than its factorization.

12212201111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54971818.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 12212201111123 its reverse (32111110221221), we get a palindrome (44323311332344).

The spelling of 12212201111123 in words is "twelve trillion, two hundred twelve billion, two hundred one million, one hundred eleven thousand, one hundred twenty-three".