2012221012212 has 48 divisors (see below), whose sum is σ = 5294733030720. Its totient is φ = 660729285216.

The previous prime is 2012221012171. The next prime is 2012221012259. The reversal of 2012221012212 is 2122101222102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139035123 + ... + 139049594.

It is an arithmetic number, because the mean of its divisors is an integer number (110306938140).

Almost surely, 2^{2012221012212} is an apocalyptic number.

It is an amenable number.

2012221012212 is an abundant number, since it is smaller than the sum of its proper divisors (3282512018508).

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

2012221012212 is a wasteful number, since it uses less digits than its factorization.

2012221012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278084797 (or 278084789 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2012221012212 its reverse (2122101222102), we get a palindrome (4134322234314).

The spelling of 2012221012212 in words is "two trillion, twelve billion, two hundred twenty-one million, twelve thousand, two hundred twelve".