12400211 has 8 divisors (see below), whose sum is σ = 12745920. Its totient is φ = 12057192.

The previous prime is 12400183. The next prime is 12400231. The reversal of 12400211 is 11200421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12400211 - 2¹⁴ = 12383827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12400192 and 12400201.

It is not an unprimeable number, because it can be changed into a prime (12400231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11660 + ... + 12678.

It is an arithmetic number, because the mean of its divisors is an integer number (1593240).

Almost surely, 2^12400211 is an apocalyptic number.

12400211 is a deficient number, since it is larger than the sum of its proper divisors (345709).

12400211 is a wasteful number, since it uses less digits than its factorization.

12400211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 12400211 is about 3521.3933321911. The cubic root of 12400211 is about 231.4602182900.

Adding to 12400211 its reverse (11200421), we get a palindrome (23600632).

The spelling of 12400211 in words is "twelve million, four hundred thousand, two hundred eleven".