12211803 has 20 divisors (see below), whose sum is σ = 18425880. Its totient is φ = 8059392.

The previous prime is 12211789. The next prime is 12211817. The reversal of 12211803 is 30811221.

12211803 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12211789) and next prime (12211817).

It is not a de Polignac number, because 12211803 - 2¹⁸ = 11949659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12211853) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7963 + ... + 9371.

It is an arithmetic number, because the mean of its divisors is an integer number (921294).

Almost surely, 2^12211803 is an apocalyptic number.

12211803 is a deficient number, since it is larger than the sum of its proper divisors (6214077).

12211803 is a wasteful number, since it uses less digits than its factorization.

12211803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528 (or 1519 counting only the distinct ones).

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

The square root of 12211803 is about 3494.5390253938. The cubic root of 12211803 is about 230.2819667232.

The spelling of 12211803 in words is "twelve million, two hundred eleven thousand, eight hundred three".