12111010221202 has 4 divisors (see below), whose sum is σ = 18166515331806. Its totient is φ = 6055505110600.

The previous prime is 12111010221197. The next prime is 12111010221203. The reversal of 12111010221202 is 20212201011121.

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., 7761745852081 + 4349264369121 = 2785991^2 + 2085489^2 .

It is not an unprimeable number, because it can be changed into a prime (12111010221203) 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 as a sum of consecutive naturals, namely, 3027752555299 + ... + 3027752555302.

Almost surely, 2^{12111010221202} is an apocalyptic number.

12111010221202 is a deficient number, since it is larger than the sum of its proper divisors (6055505110604).

12111010221202 is an equidigital number, since it uses as much as digits as its factorization.

12111010221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6055505110603.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12111010221202 its reverse (20212201011121), we get a palindrome (32323211232323).

The spelling of 12111010221202 in words is "twelve trillion, one hundred eleven billion, ten million, two hundred twenty-one thousand, two hundred two".