12211011211 has 8 divisors (see below), whose sum is σ = 14123579904. Its totient is φ = 10340477160.

The previous prime is 12211011193. The next prime is 12211011269. The reversal of 12211011211 is 11211011221.

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 12211011211 - 2¹⁵ = 12210978443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12211011191 and 12211011200.

It is not an unprimeable number, because it can be changed into a prime (12211011611) 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, 10508035 + ... + 10509196.

It is an arithmetic number, because the mean of its divisors is an integer number (1765447488).

Almost surely, 2^12211011211 is an apocalyptic number.

12211011211 is a deficient number, since it is larger than the sum of its proper divisors (1912568693).

12211011211 is an equidigital number, since it uses as much as digits as its factorization.

12211011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21017321.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12211011211 its reverse (11211011221), we get a palindrome (23422022432).

The spelling of 12211011211 in words is "twelve billion, two hundred eleven million, eleven thousand, two hundred eleven".