12211120311 has 16 divisors (see below), whose sum is σ = 17730931680. Its totient is φ = 7430100480.

The previous prime is 12211120307. The next prime is 12211120321. The reversal of 12211120311 is 11302111221.

It is not a de Polignac number, because 12211120311 - 2² = 12211120307 is a prime.

It is a super-2 number, since 2×12211120311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211120321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1755550 + ... + 1762491.

It is an arithmetic number, because the mean of its divisors is an integer number (1108183230).

Almost surely, 2^12211120311 is an apocalyptic number.

12211120311 is a deficient number, since it is larger than the sum of its proper divisors (5519811369).

12211120311 is a wasteful number, since it uses less digits than its factorization.

12211120311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3518146.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12211120311 its reverse (11302111221), we get a palindrome (23513231532).

The spelling of 12211120311 in words is "twelve billion, two hundred eleven million, one hundred twenty thousand, three hundred eleven".