212212221212012 has 48 divisors (see below), whose sum is σ = 433120817203200. Its totient is φ = 90940817998800.

The previous prime is 212212221211997. The next prime is 212212221212021. The reversal of 212212221212012 is 210212122212212.

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, 10983587 + ... + 23346597.

It is an arithmetic number, because the mean of its divisors is an integer number (9023350358400).

Almost surely, 2^{212212221212012} is an apocalyptic number.

It is an amenable number.

212212221212012 is an abundant number, since it is smaller than the sum of its proper divisors (220908595991188).

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

212212221212012 is a wasteful number, since it uses less digits than its factorization.

212212221212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12375547 (or 12375531 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212212221212012 its reverse (210212122212212), we get a palindrome (422424343424224).

The spelling of 212212221212012 in words is "two hundred twelve trillion, two hundred twelve billion, two hundred twenty-one million, two hundred twelve thousand, twelve".