12131102211 has 8 divisors (see below), whose sum is σ = 16177594560. Its totient is φ = 8086005672.

The previous prime is 12131102177. The next prime is 12131102227. The reversal of 12131102211 is 11220113121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-12131102211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12131102411) 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, 328501 + ... + 363558.

It is an arithmetic number, because the mean of its divisors is an integer number (2022199320).

Almost surely, 2^12131102211 is an apocalyptic number.

12131102211 is a deficient number, since it is larger than the sum of its proper divisors (4046492349).

12131102211 is an equidigital number, since it uses as much as digits as its factorization.

12131102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697905.

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

Adding to 12131102211 its reverse (11220113121), we get a palindrome (23351215332).

The spelling of 12131102211 in words is "twelve billion, one hundred thirty-one million, one hundred two thousand, two hundred eleven".