12200111 has 8 divisors (see below), whose sum is σ = 15210624. Its totient is φ = 9506520.

The previous prime is 12200063. The next prime is 12200117. The reversal of 12200111 is 11100221.

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 12200111 - 2¹⁰ = 12199087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79145 + ... + 79298.

It is an arithmetic number, because the mean of its divisors is an integer number (1901328).

Almost surely, 2^12200111 is an apocalyptic number.

12200111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12200111 is a deficient number, since it is larger than the sum of its proper divisors (3010513).

12200111 is a wasteful number, since it uses less digits than its factorization.

12200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158461.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 12200111 is about 3492.8657288822. The cubic root of 12200111 is about 230.2084499652.

Adding to 12200111 its reverse (11100221), we get a palindrome (23300332).

The spelling of 12200111 in words is "twelve million, two hundred thousand, one hundred eleven".