2012021221222 has 16 divisors (see below), whose sum is σ = 3132792115200. Its totient is φ = 968119774920.

The previous prime is 2012021221207. The next prime is 2012021221237. The reversal of 2012021221222 is 2221221202102.

It is an interprime number because it is at equal distance from previous prime (2012021221207) and next prime (2012021221237).

It is a self number, because there is not a number n which added to its sum of digits gives 2012021221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90636822 + ... + 90659017.

It is an arithmetic number, because the mean of its divisors is an integer number (195799507200).

Almost surely, 2^{2012021221222} is an apocalyptic number.

2012021221222 is a deficient number, since it is larger than the sum of its proper divisors (1120770893978).

2012021221222 is a wasteful number, since it uses less digits than its factorization.

2012021221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181296051.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2012021221222 its reverse (2221221202102), we get a palindrome (4233242423324).

The spelling of 2012021221222 in words is "two trillion, twelve billion, twenty-one million, two hundred twenty-one thousand, two hundred twenty-two".