2012221122002 has 24 divisors (see below), whose sum is σ = 3735281140416. Its totient is φ = 796043519856.

The previous prime is 2012221121959. The next prime is 2012221122007. The reversal of 2012221122002 is 2002211222102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2012221122007) 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, 425234558 + ... + 425239289.

It is an arithmetic number, because the mean of its divisors is an integer number (155636714184).

Almost surely, 2^{2012221122002} is an apocalyptic number.

2012221122002 is a deficient number, since it is larger than the sum of its proper divisors (1723060018414).

2012221122002 is a wasteful number, since it uses less digits than its factorization.

2012221122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850473882 (or 850473869 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2012221122002 its reverse (2002211222102), we get a palindrome (4014432344104).

The spelling of 2012221122002 in words is "two trillion, twelve billion, two hundred twenty-one million, one hundred twenty-two thousand, two".