12401322111 has 48 divisors (see below), whose sum is σ = 18623404800. Its totient is φ = 7946640000.

The previous prime is 12401322013. The next prime is 12401322127. The reversal of 12401322111 is 11122310421.

It is not a de Polignac number, because 12401322111 - 2¹⁴ = 12401305727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401322191) 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 47 ways as a sum of consecutive naturals, for example, 7298340 + ... + 7300038.

It is an arithmetic number, because the mean of its divisors is an integer number (387987600).

Almost surely, 2^12401322111 is an apocalyptic number.

12401322111 is a deficient number, since it is larger than the sum of its proper divisors (6222082689).

12401322111 is a wasteful number, since it uses less digits than its factorization.

12401322111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028 (or 2025 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12401322111 its reverse (11122310421), we get a palindrome (23523632532).

The spelling of 12401322111 in words is "twelve billion, four hundred one million, three hundred twenty-two thousand, one hundred eleven".