12210221211 has 8 divisors (see below), whose sum is σ = 16438356480. Its totient is φ = 8061116712.

The previous prime is 12210221201. The next prime is 12210221251. The reversal of 12210221211 is 11212201221.

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

It is not a de Polignac number, because 12210221211 - 2¹¹ = 12210219163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12210221201) 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, 19757331 + ... + 19757948.

It is an arithmetic number, because the mean of its divisors is an integer number (2054794560).

Almost surely, 2^12210221211 is an apocalyptic number.

12210221211 is a deficient number, since it is larger than the sum of its proper divisors (4228135269).

12210221211 is a wasteful number, since it uses less digits than its factorization.

12210221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39515385.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12210221211 its reverse (11212201221), we get a palindrome (23422422432).

The spelling of 12210221211 in words is "twelve billion, two hundred ten million, two hundred twenty-one thousand, two hundred eleven".