12221011211 has 8 divisors (see below), whose sum is σ = 12345552048. Its totient is φ = 12096540000.

The previous prime is 12221011193. The next prime is 12221011213. The reversal of 12221011211 is 11211012221.

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 12221011211 - 2¹⁴ = 12220994827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221011213) 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, 381641 + ... + 412421.

It is an arithmetic number, because the mean of its divisors is an integer number (1543194006).

Almost surely, 2^12221011211 is an apocalyptic number.

12221011211 is a deficient number, since it is larger than the sum of its proper divisors (124540837).

12221011211 is a wasteful number, since it uses less digits than its factorization.

12221011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34813.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12221011211 its reverse (11211012221), we get a palindrome (23432023432).

The spelling of 12221011211 in words is "twelve billion, two hundred twenty-one million, eleven thousand, two hundred eleven".