12120201122 has 4 divisors (see below), whose sum is σ = 18180301686. Its totient is φ = 6060100560.

The previous prime is 12120201109. The next prime is 12120201127. The reversal of 12120201122 is 22110202121.

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., 8729351761 + 3390849361 = 93431^2 + 58231^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12120201097 and 12120201106.

It is not an unprimeable number, because it can be changed into a prime (12120201127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3030050279 + ... + 3030050282.

Almost surely, 2^12120201122 is an apocalyptic number.

12120201122 is a deficient number, since it is larger than the sum of its proper divisors (6060100564).

12120201122 is an equidigital number, since it uses as much as digits as its factorization.

12120201122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060100563.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12120201122 its reverse (22110202121), we get a palindrome (34230403243).

Subtracting 12120201122 from its reverse (22110202121), we obtain a palindrome (9990000999).

The spelling of 12120201122 in words is "twelve billion, one hundred twenty million, two hundred one thousand, one hundred twenty-two".