12210012012112 has 40 divisors (see below), whose sum is σ = 23901747837800. Its totient is φ = 6041824100352.

The previous prime is 12210012012091. The next prime is 12210012012113. The reversal of 12210012012112 is 21121021001221.

It can be written as a sum of positive squares in 4 ways, for example, as 204452282896 + 12005559729216 = 452164^2 + 3464904^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210012012113) 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, 41928064 + ... + 42218272.

It is an arithmetic number, because the mean of its divisors is an integer number (597543695945).

Almost surely, 2^{12210012012112} is an apocalyptic number.

It is an amenable number.

12210012012112 is a deficient number, since it is larger than the sum of its proper divisors (11691735825688).

12210012012112 is a wasteful number, since it uses less digits than its factorization.

12210012012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317423 (or 317417 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12210012012112 its reverse (21121021001221), we get a palindrome (33331033013333).

The spelling of 12210012012112 in words is "twelve trillion, two hundred ten billion, twelve million, twelve thousand, one hundred twelve".