12121323322201 has 16 divisors (see below), whose sum is σ = 14097218140800. Its totient is φ = 10337959957248.

The previous prime is 12121323322187. The next prime is 12121323322211. The reversal of 12121323322201 is 10222332312121.

It is a cyclic number.

It is not a de Polignac number, because 12121323322201 - 2²¹ = 12121321225049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12121323322211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 815803806 + ... + 815818663.

It is an arithmetic number, because the mean of its divisors is an integer number (881076133800).

Almost surely, 2^{12121323322201} is an apocalyptic number.

It is an amenable number.

12121323322201 is a deficient number, since it is larger than the sum of its proper divisors (1975894818599).

12121323322201 is a wasteful number, since it uses less digits than its factorization.

12121323322201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631622528.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12121323322201 its reverse (10222332312121), we get a palindrome (22343655634322).

The spelling of 12121323322201 in words is "twelve trillion, one hundred twenty-one billion, three hundred twenty-three million, three hundred twenty-two thousand, two hundred one".