12012210022211 has 4 divisors (see below), whose sum is σ = 13728240025392. Its totient is φ = 10296180019032.

The previous prime is 12012210022207. The next prime is 12012210022243. The reversal of 12012210022211 is 11222001221021.

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 12012210022211 - 2² = 12012210022207 is a prime.

It is a super-2 number, since 2×12012210022211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12012210022211.

It is not an unprimeable number, because it can be changed into a prime (12012210022711) 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, 858015001580 + ... + 858015001593.

It is an arithmetic number, because the mean of its divisors is an integer number (3432060006348).

Almost surely, 2^{12012210022211} is an apocalyptic number.

12012210022211 is a deficient number, since it is larger than the sum of its proper divisors (1716030003181).

12012210022211 is an equidigital number, since it uses as much as digits as its factorization.

12012210022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716030003180.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12012210022211 its reverse (11222001221021), we get a palindrome (23234211243232).

The spelling of 12012210022211 in words is "twelve trillion, twelve billion, two hundred ten million, twenty-two thousand, two hundred eleven".