12211133311 has 4 divisors (see below), whose sum is σ = 13150451272. Its totient is φ = 11271815352.

The previous prime is 12211133261. The next prime is 12211133317. The reversal of 12211133311 is 11333111221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11333111221 = 12739 ⋅889639.

It is a cyclic number.

It is not a de Polignac number, because 12211133311 - 2²⁹ = 11674262399 is a prime.

It is a super-2 number, since 2×12211133311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211133317) 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, 469658961 + ... + 469658986.

It is an arithmetic number, because the mean of its divisors is an integer number (3287612818).

Almost surely, 2^12211133311 is an apocalyptic number.

12211133311 is a deficient number, since it is larger than the sum of its proper divisors (939317961).

12211133311 is an equidigital number, since it uses as much as digits as its factorization.

12211133311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939317960.

The product of its digits is 108, while the sum is 19.

Adding to 12211133311 its reverse (11333111221), we get a palindrome (23544244532).

The spelling of 12211133311 in words is "twelve billion, two hundred eleven million, one hundred thirty-three thousand, three hundred eleven".