12211020202 has 32 divisors (see below), whose sum is σ = 19864196352. Its totient is φ = 5607297024.

The previous prime is 12211020197. The next prime is 12211020203. The reversal of 12211020202 is 20202011221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12211020203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1775823 + ... + 1782685.

It is an arithmetic number, because the mean of its divisors is an integer number (620756136).

Almost surely, 2^12211020202 is an apocalyptic number.

12211020202 is a deficient number, since it is larger than the sum of its proper divisors (7653176150).

12211020202 is a wasteful number, since it uses less digits than its factorization.

12211020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8142.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12211020202 its reverse (20202011221), we get a palindrome (32413031423).

The spelling of 12211020202 in words is "twelve billion, two hundred eleven million, twenty thousand, two hundred two".