12122220122211 has 16 divisors (see below), whose sum is σ = 16684819937280. Its totient is φ = 7820565005760.

The previous prime is 12122220122143. The next prime is 12122220122231. The reversal of 12122220122211 is 11222102222121.

12122220122211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12122220122211 - 2⁹ = 12122220121699 is a prime.

It is a super-3 number, since 3×12122220122211³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12122220122231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1471855 + ... + 5139143.

It is an arithmetic number, because the mean of its divisors is an integer number (1042801246080).

Almost surely, 2^{12122220122211} is an apocalyptic number.

12122220122211 is a deficient number, since it is larger than the sum of its proper divisors (4562599815069).

12122220122211 is a wasteful number, since it uses less digits than its factorization.

12122220122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702866.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 12122220122211 its reverse (11222102222121), we get a palindrome (23344322344332).

The spelling of 12122220122211 in words is "twelve trillion, one hundred twenty-two billion, two hundred twenty million, one hundred twenty-two thousand, two hundred eleven".