12221100010123 has 4 divisors (see below), whose sum is σ = 12519175620168. Its totient is φ = 11923024400080.

The previous prime is 12221100010117. The next prime is 12221100010129. The reversal of 12221100010123 is 32101000112221.

12221100010123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (12221100010117) and next prime (12221100010129).

It is a cyclic number.

It is not a de Polignac number, because 12221100010123 - 2²¹ = 12221097912971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12221100010097 and 12221100010106.

It is not an unprimeable number, because it can be changed into a prime (12221100010129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149037804961 + ... + 149037805042.

It is an arithmetic number, because the mean of its divisors is an integer number (3129793905042).

Almost surely, 2^{12221100010123} is an apocalyptic number.

12221100010123 is a deficient number, since it is larger than the sum of its proper divisors (298075610045).

12221100010123 is an equidigital number, since it uses as much as digits as its factorization.

12221100010123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298075610044.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12221100010123 its reverse (32101000112221), we get a palindrome (44322100122344).

The spelling of 12221100010123 in words is "twelve trillion, two hundred twenty-one billion, one hundred million, ten thousand, one hundred twenty-three".