12219903 has 20 divisors (see below), whose sum is σ = 18571080. Its totient is φ = 8005392.

The previous prime is 12219901. The next prime is 12219913. The reversal of 12219903 is 30991221.

It is not a de Polignac number, because 12219903 - 2¹ = 12219901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12219901) 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, 3501 + ... + 6057.

It is an arithmetic number, because the mean of its divisors is an integer number (928554).

Almost surely, 2^12219903 is an apocalyptic number.

12219903 is a deficient number, since it is larger than the sum of its proper divisors (6351177).

12219903 is an equidigital number, since it uses as much as digits as its factorization.

12219903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628 (or 2619 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 12219903 is about 3495.6977844202. The cubic root of 12219903 is about 230.3328702541.

The spelling of 12219903 in words is "twelve million, two hundred nineteen thousand, nine hundred three".