12031213220212 has 48 divisors (see below), whose sum is σ = 21669955034112. Its totient is φ = 5841466485120.

The previous prime is 12031213220209. The next prime is 12031213220261. The reversal of 12031213220212 is 21202231213021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55510278 + ... + 55726594.

It is an arithmetic number, because the mean of its divisors is an integer number (451457396544).

Almost surely, 2^{12031213220212} is an apocalyptic number.

It is an amenable number.

12031213220212 is a deficient number, since it is larger than the sum of its proper divisors (9638741813900).

12031213220212 is a wasteful number, since it uses less digits than its factorization.

12031213220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218248 (or 218246 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12031213220212 its reverse (21202231213021), we get a palindrome (33233444433233).

The spelling of 12031213220212 in words is "twelve trillion, thirty-one billion, two hundred thirteen million, two hundred twenty thousand, two hundred twelve".