12031211012210 has 32 divisors (see below), whose sum is σ = 23372630032752. Its totient is φ = 4432657063680.

The previous prime is 12031211012207. The next prime is 12031211012251. The reversal of 12031211012210 is 1221011213021.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 283365647041 + 11747845365169 = 532321^2 + 3427513^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100317269 + ... + 100437128.

Almost surely, 2^{12031211012210} is an apocalyptic number.

12031211012210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12031211012210 is a deficient number, since it is larger than the sum of its proper divisors (11341419020542).

12031211012210 is a wasteful number, since it uses less digits than its factorization.

12031211012210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200754878.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12031211012210 its reverse (1221011213021), we get a palindrome (13252222225231).

The spelling of 12031211012210 in words is "twelve trillion, thirty-one billion, two hundred eleven million, twelve thousand, two hundred ten".