12211002123 has 8 divisors (see below), whose sum is σ = 16287630336. Its totient is φ = 8137521000.

The previous prime is 12211002109. The next prime is 12211002149. The reversal of 12211002123 is 32120011221.

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

It is not a de Polignac number, because 12211002123 - 2¹⁸ = 12210739979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12211002163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 777703 + ... + 793248.

It is an arithmetic number, because the mean of its divisors is an integer number (2035953792).

Almost surely, 2^12211002123 is an apocalyptic number.

12211002123 is a deficient number, since it is larger than the sum of its proper divisors (4076628213).

12211002123 is a wasteful number, since it uses less digits than its factorization.

12211002123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573545.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12211002123 its reverse (32120011221), we get a palindrome (44331013344).

The spelling of 12211002123 in words is "twelve billion, two hundred eleven million, two thousand, one hundred twenty-three".