12212210221211 has 32 divisors (see below), whose sum is σ = 16604368435200. Its totient is φ = 8672817329280.

The previous prime is 12212210221199. The next prime is 12212210221219. The reversal of 12212210221211 is 11212201221221.

It is not a de Polignac number, because 12212210221211 - 2¹⁰ = 12212210220187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12212210221219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77136176 + ... + 77294333.

It is an arithmetic number, because the mean of its divisors is an integer number (518886513600).

Almost surely, 2^{12212210221211} is an apocalyptic number.

12212210221211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12212210221211 is a deficient number, since it is larger than the sum of its proper divisors (4392158213989).

12212210221211 is a wasteful number, since it uses less digits than its factorization.

12212210221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154430619.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12212210221211 its reverse (11212201221221), we get a palindrome (23424411442432).

It can be divided in two parts, 12212210 and 221211, that added together give a palindrome (12433421).

The spelling of 12212210221211 in words is "twelve trillion, two hundred twelve billion, two hundred ten million, two hundred twenty-one thousand, two hundred eleven".