12211033323123 has 64 divisors (see below), whose sum is σ = 18310358246400. Its totient is φ = 8042313277440.

The previous prime is 12211033323121. The next prime is 12211033323133. The reversal of 12211033323123 is 32132333011221.

12211033323123 is a `hidden beast` number, since 1 + 2 + 2 + 1 + 10 + 3 + 332 + 312 + 3 = 666.

It is not a de Polignac number, because 12211033323123 - 2¹ = 12211033323121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12211033323121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2171619690 + ... + 2171625312.

It is an arithmetic number, because the mean of its divisors is an integer number (286099347600).

Almost surely, 2^{12211033323123} is an apocalyptic number.

12211033323123 is a deficient number, since it is larger than the sum of its proper divisors (6099324923277).

12211033323123 is a wasteful number, since it uses less digits than its factorization.

12211033323123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8409 (or 8403 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 12211033323123 its reverse (32132333011221), we get a palindrome (44343366334344).

The spelling of 12211033323123 in words is "twelve trillion, two hundred eleven billion, thirty-three million, three hundred twenty-three thousand, one hundred twenty-three".