12122100202 has 4 divisors (see below), whose sum is σ = 18183150306. Its totient is φ = 6061050100.

The previous prime is 12122100181. The next prime is 12122100203. The reversal of 12122100202 is 20200122121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20200122121 = 23059 ⋅876019.

It can be written as a sum of positive squares in only one way, i.e., 10905416041 + 1216684161 = 104429^2 + 34881^2 .

It is not an unprimeable number, because it can be changed into a prime (12122100203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030525049 + ... + 3030525052.

Almost surely, 2^12122100202 is an apocalyptic number.

12122100202 is a deficient number, since it is larger than the sum of its proper divisors (6061050104).

12122100202 is an equidigital number, since it uses as much as digits as its factorization.

12122100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6061050103.

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

Adding to 12122100202 its reverse (20200122121), we get a palindrome (32322222323).

The spelling of 12122100202 in words is "twelve billion, one hundred twenty-two million, one hundred thousand, two hundred two".