12220011222123 has 4 divisors (see below), whose sum is σ = 16293348296168. Its totient is φ = 8146674148080.

The previous prime is 12220011222119. The next prime is 12220011222149. The reversal of 12220011222123 is 32122211002221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12220011222123 - 2² = 12220011222119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12220011222123.

It is not an unprimeable number, because it can be changed into a prime (12220011222173) by changing a digit.

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, 2036668537018 + ... + 2036668537023.

It is an arithmetic number, because the mean of its divisors is an integer number (4073337074042).

Almost surely, 2^{12220011222123} is an apocalyptic number.

12220011222123 is a deficient number, since it is larger than the sum of its proper divisors (4073337074045).

12220011222123 is an equidigital number, since it uses as much as digits as its factorization.

12220011222123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073337074044.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12220011222123 its reverse (32122211002221), we get a palindrome (44342222224344).

The spelling of 12220011222123 in words is "twelve trillion, two hundred twenty billion, eleven million, two hundred twenty-two thousand, one hundred twenty-three".