12311211122010 has 96 divisors (see below), whose sum is σ = 34808041271952. Its totient is φ = 3006362511360.

The previous prime is 12311211121997. The next prime is 12311211122099. The reversal of 12311211122010 is 1022111211321.

It is a happy number.

12311211122010 is a `hidden beast` number, since 1 + 231 + 1 + 211 + 1 + 220 + 1 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 7937838551889 + 4373372570121 = 2817417^2 + 2091261^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 108680461 + ... + 108793680.

Almost surely, 2^{12311211122010} is an apocalyptic number.

12311211122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311211122010 is an abundant number, since it is smaller than the sum of its proper divisors (22496830149942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12311211122010 is a wasteful number, since it uses less digits than its factorization.

12311211122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217474208 (or 217474205 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 12311211122010 its reverse (1022111211321), we get a palindrome (13333322333331).

The spelling of 12311211122010 in words is "twelve trillion, three hundred eleven billion, two hundred eleven million, one hundred twenty-two thousand, ten".