12201211122 has 16 divisors (see below), whose sum is σ = 25243885440. Its totient is φ = 3926826512.

The previous prime is 12201211111. The next prime is 12201211123. The reversal of 12201211122 is 22111210221.

It is not an unprimeable number, because it can be changed into a prime (12201211123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35060778 + ... + 35061125.

It is an arithmetic number, because the mean of its divisors is an integer number (1577742840).

Almost surely, 2^12201211122 is an apocalyptic number.

12201211122 is an abundant number, since it is smaller than the sum of its proper divisors (13042674318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12201211122 is a wasteful number, since it uses less digits than its factorization.

12201211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70121937.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12201211122 its reverse (22111210221), we get a palindrome (34312421343).

Subtracting 12201211122 from its reverse (22111210221), we obtain a palindrome (9909999099).

The spelling of 12201211122 in words is "twelve billion, two hundred one million, two hundred eleven thousand, one hundred twenty-two".