12201020122 has 16 divisors (see below), whose sum is σ = 19828746432. Its totient is φ = 5608128960.

The previous prime is 12201020093. The next prime is 12201020149. The reversal of 12201020122 is 22102010221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4171254 + ... + 4174177.

It is an arithmetic number, because the mean of its divisors is an integer number (1239296652).

Almost surely, 2^12201020122 is an apocalyptic number.

12201020122 is a deficient number, since it is larger than the sum of its proper divisors (7627726310).

12201020122 is a wasteful number, since it uses less digits than its factorization.

12201020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8345493.

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

Adding to 12201020122 its reverse (22102010221), we get a palindrome (34303030343).

Subtracting 12201020122 from its reverse (22102010221), we obtain a palindrome (9900990099).

The spelling of 12201020122 in words is "twelve billion, two hundred one million, twenty thousand, one hundred twenty-two".