12211001211 has 8 divisors (see below), whose sum is σ = 16282743120. Its totient is φ = 8139963392.

The previous prime is 12211001191. The next prime is 12211001221. The reversal of 12211001211 is 11210011221.

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 12211001211 - 2⁷ = 12211001083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12211001221) 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, 134130 + ... + 205943.

It is an arithmetic number, because the mean of its divisors is an integer number (2035342890).

Almost surely, 2^12211001211 is an apocalyptic number.

12211001211 is a deficient number, since it is larger than the sum of its proper divisors (4071741909).

12211001211 is a wasteful number, since it uses less digits than its factorization.

12211001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352045.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12211001211 its reverse (11210011221), we get a palindrome (23421012432).

The spelling of 12211001211 in words is "twelve billion, two hundred eleven million, one thousand, two hundred eleven".