12210202503 has 12 divisors (see below), whose sum is σ = 18565220440. Its totient is φ = 7711706736.

The previous prime is 12210202489. The next prime is 12210202517. The reversal of 12210202503 is 30520201221.

It is an interprime number because it is at equal distance from previous prime (12210202489) and next prime (12210202517).

It is not a de Polignac number, because 12210202503 - 2⁶ = 12210202439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210202573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35702176 + ... + 35702517.

Almost surely, 2^12210202503 is an apocalyptic number.

12210202503 is a deficient number, since it is larger than the sum of its proper divisors (6355017937).

12210202503 is a wasteful number, since it uses less digits than its factorization.

12210202503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71404718 (or 71404715 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 12210202503 its reverse (30520201221), we get a palindrome (42730403724).

The spelling of 12210202503 in words is "twelve billion, two hundred ten million, two hundred two thousand, five hundred three".