12211220211011 has 8 divisors (see below), whose sum is σ = 12238726705200. Its totient is φ = 12183715095552.

The previous prime is 12211220211007. The next prime is 12211220211023. The reversal of 12211220211011 is 11011202211221.

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 12211220211011 - 2² = 12211220211007 is a prime.

It is a super-2 number, since 2×12211220211011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12211220211041) 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, 18553871 + ... + 19200743.

It is an arithmetic number, because the mean of its divisors is an integer number (1529840838150).

Almost surely, 2^{12211220211011} is an apocalyptic number.

12211220211011 is a deficient number, since it is larger than the sum of its proper divisors (27506494189).

12211220211011 is an equidigital number, since it uses as much as digits as its factorization.

12211220211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689365.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12211220211011 its reverse (11011202211221), we get a palindrome (23222422422232).

The spelling of 12211220211011 in words is "twelve trillion, two hundred eleven billion, two hundred twenty million, two hundred eleven thousand, eleven".