12211202011 has 4 divisors (see below), whose sum is σ = 12243940192. Its totient is φ = 12178463832.

The previous prime is 12211201993. The next prime is 12211202027. The reversal of 12211202011 is 11020211221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12211202011 - 2¹⁹ = 12210677723 is a prime.

It is a super-2 number, since 2×12211202011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12211201982 and 12211202000.

It is not an unprimeable number, because it can be changed into a prime (12211202911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16368531 + ... + 16369276.

It is an arithmetic number, because the mean of its divisors is an integer number (3060985048).

Almost surely, 2^12211202011 is an apocalyptic number.

12211202011 is a deficient number, since it is larger than the sum of its proper divisors (32738181).

12211202011 is an equidigital number, since it uses as much as digits as its factorization.

12211202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32738180.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12211202011 its reverse (11020211221), we get a palindrome (23231413232).

The spelling of 12211202011 in words is "twelve billion, two hundred eleven million, two hundred two thousand, eleven".