12123321022101 has 32 divisors (see below), whose sum is σ = 17035141939200. Its totient is φ = 7647860151360.

The previous prime is 12123321022097. The next prime is 12123321022103. The reversal of 12123321022101 is 10122012332121.

It is not a de Polignac number, because 12123321022101 - 2² = 12123321022097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123321022103) 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 31 ways as a sum of consecutive naturals, for example, 170621740 + ... + 170692778.

It is an arithmetic number, because the mean of its divisors is an integer number (532348185600).

Almost surely, 2^{12123321022101} is an apocalyptic number.

It is an amenable number.

12123321022101 is a deficient number, since it is larger than the sum of its proper divisors (4911820917099).

12123321022101 is a wasteful number, since it uses less digits than its factorization.

12123321022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74529.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12123321022101 its reverse (10122012332121), we get a palindrome (22245333354222).

The spelling of 12123321022101 in words is "twelve trillion, one hundred twenty-three billion, three hundred twenty-one million, twenty-two thousand, one hundred one".