12012212220211 has 8 divisors (see below), whose sum is σ = 14171089071104. Its totient is φ = 9964047002760.

The previous prime is 12012212220191. The next prime is 12012212220269. The reversal of 12012212220211 is 11202221221021.

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 12012212220211 - 2²⁵ = 12012178665779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12012212220611) 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, 27677908125 + ... + 27677908558.

It is an arithmetic number, because the mean of its divisors is an integer number (1771386133888).

Almost surely, 2^{12012212220211} is an apocalyptic number.

12012212220211 is a deficient number, since it is larger than the sum of its proper divisors (2158876850893).

12012212220211 is an equidigital number, since it uses as much as digits as its factorization.

12012212220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55355816721.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12012212220211 its reverse (11202221221021), we get a palindrome (23214433441232).

The spelling of 12012212220211 in words is "twelve trillion, twelve billion, two hundred twelve million, two hundred twenty thousand, two hundred eleven".