12212103 has 32 divisors (see below), whose sum is σ = 18662400. Its totient is φ = 7056896.

The previous prime is 12212087. The next prime is 12212107. The reversal of 12212103 is 30121221.

It is a cyclic number.

It is not a de Polignac number, because 12212103 - 2⁴ = 12212087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33838 + ... + 34196.

It is an arithmetic number, because the mean of its divisors is an integer number (583200).

Almost surely, 2^12212103 is an apocalyptic number.

12212103 is a deficient number, since it is larger than the sum of its proper divisors (6450297).

12212103 is a wasteful number, since it uses less digits than its factorization.

12212103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 12212103 is about 3494.5819492466. The cubic root of 12212103 is about 230.2838524405.

Adding to 12212103 its reverse (30121221), we get a palindrome (42333324).

The spelling of 12212103 in words is "twelve million, two hundred twelve thousand, one hundred three".