2012221122012 has 36 divisors (see below), whose sum is σ = 5091489006240. Its totient is φ = 670075604352.

The previous prime is 2012221122011. The next prime is 2012221122059. The reversal of 2012221122012 is 2102211222102.

It is a happy number.

2012221122012 is a `hidden beast` number, since 201 + 22 + 211 + 220 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012221122011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27661908 + ... + 27734555.

Almost surely, 2^{2012221122012} is an apocalyptic number.

It is an amenable number.

2012221122012 is an abundant number, since it is smaller than the sum of its proper divisors (3079267884228).

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

2012221122012 is a wasteful number, since it uses less digits than its factorization.

2012221122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55397482 (or 55397477 counting only the distinct ones).

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

Adding to 2012221122012 its reverse (2102211222102), we get a palindrome (4114432344114).

The spelling of 2012221122012 in words is "two trillion, twelve billion, two hundred twenty-one million, one hundred twenty-two thousand, twelve".