12212200221202 has 4 divisors (see below), whose sum is σ = 18318300331806. Its totient is φ = 6106100110600.

The previous prime is 12212200221119. The next prime is 12212200221203. The reversal of 12212200221202 is 20212200221221.

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., 10864532307321 + 1347667913881 = 3296139^2 + 1160891^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12212200221202.

It is not an unprimeable number, because it can be changed into a prime (12212200221203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3053050055299 + ... + 3053050055302.

Almost surely, 2^{12212200221202} is an apocalyptic number.

12212200221202 is a deficient number, since it is larger than the sum of its proper divisors (6106100110604).

12212200221202 is an equidigital number, since it uses as much as digits as its factorization.

12212200221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106100110603.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12212200221202 its sum of digits (19), we get a palindrome (12212200221221).

Adding to 12212200221202 its reverse (20212200221221), we get a palindrome (32424400442423).

The spelling of 12212200221202 in words is "twelve trillion, two hundred twelve billion, two hundred million, two hundred twenty-one thousand, two hundred two".