12111211202 has 4 divisors (see below), whose sum is σ = 18166816806. Its totient is φ = 6055605600.

The previous prime is 12111211201. The next prime is 12111211289. The reversal of 12111211202 is 20211211121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9348762721 + 2762448481 = 96689^2 + 52559^2 .

It is not an unprimeable number, because it can be changed into a prime (12111211201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3027802799 + ... + 3027802802.

Almost surely, 2^12111211202 is an apocalyptic number.

12111211202 is a deficient number, since it is larger than the sum of its proper divisors (6055605604).

12111211202 is an equidigital number, since it uses as much as digits as its factorization.

12111211202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055605603.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12111211202 its reverse (20211211121), we get a palindrome (32322422323).

The spelling of 12111211202 in words is "twelve billion, one hundred eleven million, two hundred eleven thousand, two hundred two".