12211220203 has 16 divisors (see below), whose sum is σ = 15107087296. Its totient is φ = 9611550720.

The previous prime is 12211220201. The next prime is 12211220209. The reversal of 12211220203 is 30202211221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12211220203 - 2¹ = 12211220201 is a prime.

It is a super-2 number, since 2×12211220203² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12211220201) 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, 330078 + ... + 365203.

It is an arithmetic number, because the mean of its divisors is an integer number (944192956).

Almost surely, 2^12211220203 is an apocalyptic number.

12211220203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12211220203 is a deficient number, since it is larger than the sum of its proper divisors (2895867093).

12211220203 is a wasteful number, since it uses less digits than its factorization.

12211220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695494.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12211220203 its reverse (30202211221), we get a palindrome (42413431424).

The spelling of 12211220203 in words is "twelve billion, two hundred eleven million, two hundred twenty thousand, two hundred three".