12220202122 has 4 divisors (see below), whose sum is σ = 18330303186. Its totient is φ = 6110101060.

The previous prime is 12220202119. The next prime is 12220202129. The reversal of 12220202122 is 22120202221.

12220202122 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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., 7682697801 + 4537504321 = 87651^2 + 67361^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12220202096 and 12220202105.

It is not an unprimeable number, because it can be changed into a prime (12220202129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055050529 + ... + 3055050532.

Almost surely, 2^12220202122 is an apocalyptic number.

12220202122 is a deficient number, since it is larger than the sum of its proper divisors (6110101064).

12220202122 is an equidigital number, since it uses as much as digits as its factorization.

12220202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110101063.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12220202122 its reverse (22120202221), we get a palindrome (34340404343).

Subtracting 12220202122 from its reverse (22120202221), we obtain a palindrome (9900000099).

The spelling of 12220202122 in words is "twelve billion, two hundred twenty million, two hundred two thousand, one hundred twenty-two".