12400444350211 has 16 divisors (see below), whose sum is σ = 13061524783104. Its totient is φ = 11749541785344.

The previous prime is 12400444350199. The next prime is 12400444350263. The reversal of 12400444350211 is 11205344400421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12400444350211 - 2²⁵ = 12400410795779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12400444350611) 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, 33128446 + ... + 33500668.

It is an arithmetic number, because the mean of its divisors is an integer number (816345298944).

Almost surely, 2^{12400444350211} is an apocalyptic number.

12400444350211 is a deficient number, since it is larger than the sum of its proper divisors (661080432893).

12400444350211 is a wasteful number, since it uses less digits than its factorization.

12400444350211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385890.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 12400444350211 its reverse (11205344400421), we get a palindrome (23605788750632).

The spelling of 12400444350211 in words is "twelve trillion, four hundred billion, four hundred forty-four million, three hundred fifty thousand, two hundred eleven".