12201110122 has 4 divisors (see below), whose sum is σ = 18301665186. Its totient is φ = 6100555060.

The previous prime is 12201110101. The next prime is 12201110161. The reversal of 12201110122 is 22101110221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22101110221 = 29 ⋅762107249.

It can be written as a sum of positive squares in only one way, i.e., 10588204201 + 1612905921 = 102899^2 + 40161^2 .

It is an unprimeable number.

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, 3050277529 + ... + 3050277532.

Almost surely, 2^12201110122 is an apocalyptic number.

12201110122 is a deficient number, since it is larger than the sum of its proper divisors (6100555064).

12201110122 is an equidigital number, since it uses as much as digits as its factorization.

12201110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100555063.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12201110122 its reverse (22101110221), we get a palindrome (34302220343).

Subtracting 12201110122 from its reverse (22101110221), we obtain a palindrome (9900000099).

The spelling of 12201110122 in words is "twelve billion, two hundred one million, one hundred ten thousand, one hundred twenty-two".