12231221323011 has 16 divisors (see below), whose sum is σ = 16368168065280. Its totient is φ = 8124243003360.

The previous prime is 12231221322857. The next prime is 12231221323037. The reversal of 12231221323011 is 11032312213221.

12231221323011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12231221323011 - 2¹⁴ = 12231221306627 is a prime.

It is a super-2 number, since 2×12231221323011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12231221373011) 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, 2459196 + ... + 5523593.

It is an arithmetic number, because the mean of its divisors is an integer number (1023010504080).

Almost surely, 2^{12231221323011} is an apocalyptic number.

12231221323011 is a deficient number, since it is larger than the sum of its proper divisors (4136946742269).

12231221323011 is a wasteful number, since it uses less digits than its factorization.

12231221323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7984666.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12231221323011 its reverse (11032312213221), we get a palindrome (23263533536232).

The spelling of 12231221323011 in words is "twelve trillion, two hundred thirty-one billion, two hundred twenty-one million, three hundred twenty-three thousand, eleven".