212220012222012 has 24 divisors (see below), whose sum is σ = 495180360259200. Its totient is φ = 70739956682416.

The previous prime is 212220012222011. The next prime is 212220012222047. The reversal of 212220012222012 is 210222210022212.

It is a self number, because there is not a number n which added to its sum of digits gives 212220012222012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212220012222011) 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, 15971539 + ... + 26067797.

It is an arithmetic number, because the mean of its divisors is an integer number (20632515010800).

Almost surely, 2^{212220012222012} is an apocalyptic number.

It is an amenable number.

212220012222012 is an abundant number, since it is smaller than the sum of its proper divisors (282960348037188).

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

212220012222012 is a wasteful number, since it uses less digits than its factorization.

212220012222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11847905 (or 11847903 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 212220012222012 its reverse (210222210022212), we get a palindrome (422442222244224).

The spelling of 212220012222012 in words is "two hundred twelve trillion, two hundred twenty billion, twelve million, two hundred twenty-two thousand, twelve".