12122201112211 has 4 divisors (see below), whose sum is σ = 12170496734424. Its totient is φ = 12073905490000.

The previous prime is 12122201112191. The next prime is 12122201112227. The reversal of 12122201112211 is 11221110222121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12122201112211 - 2²³ = 12122192723603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122201112011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24147810730 + ... + 24147811231.

It is an arithmetic number, because the mean of its divisors is an integer number (3042624183606).

Almost surely, 2^{12122201112211} is an apocalyptic number.

12122201112211 is a deficient number, since it is larger than the sum of its proper divisors (48295622213).

12122201112211 is an equidigital number, since it uses as much as digits as its factorization.

12122201112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48295622212.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12122201112211 its reverse (11221110222121), we get a palindrome (23343311334332).

The spelling of 12122201112211 in words is "twelve trillion, one hundred twenty-two billion, two hundred one million, one hundred twelve thousand, two hundred eleven".