12221221030203 has 16 divisors (see below), whose sum is σ = 16483601930400. Its totient is φ = 8053222087680.

The previous prime is 12221221030171. The next prime is 12221221030237. The reversal of 12221221030203 is 30203012212221.

It is not a de Polignac number, because 12221221030203 - 2⁵ = 12221221030171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12221221030203.

It is not an unprimeable number, because it can be changed into a prime (12221221030003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6915658 + ... + 8501103.

It is an arithmetic number, because the mean of its divisors is an integer number (1030225120650).

Almost surely, 2^{12221221030203} is an apocalyptic number.

12221221030203 is a deficient number, since it is larger than the sum of its proper divisors (4262380900197).

12221221030203 is a wasteful number, since it uses less digits than its factorization.

12221221030203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15419822.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12221221030203 its reverse (30203012212221), we get a palindrome (42424233242424).

The spelling of 12221221030203 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty-one million, thirty thousand, two hundred three".