12222021211 has 8 divisors (see below), whose sum is σ = 12361440384. Its totient is φ = 12082963200.

The previous prime is 12222021173. The next prime is 12222021257. The reversal of 12222021211 is 11212022221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12222021211 - 2¹¹ = 12222019163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12222621211) 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, 21931 + ... + 157876.

It is an arithmetic number, because the mean of its divisors is an integer number (1545180048).

Almost surely, 2^12222021211 is an apocalyptic number.

12222021211 is a deficient number, since it is larger than the sum of its proper divisors (139419173).

12222021211 is a wasteful number, since it uses less digits than its factorization.

12222021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180581.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12222021211 its reverse (11212022221), we get a palindrome (23434043432).

The spelling of 12222021211 in words is "twelve billion, two hundred twenty-two million, twenty-one thousand, two hundred eleven".