2002221201212 has 12 divisors (see below), whose sum is σ = 3503897040336. Its totient is φ = 1001107761120.

The previous prime is 2002221201191. The next prime is 2002221201289. The reversal of 2002221201212 is 2121021222002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2223593 + ... + 2991455.

It is an arithmetic number, because the mean of its divisors is an integer number (291991420028).

Almost surely, 2^{2002221201212} is an apocalyptic number.

It is an amenable number.

2002221201212 is a deficient number, since it is larger than the sum of its proper divisors (1501675839124).

2002221201212 is a wasteful number, since it uses less digits than its factorization.

2002221201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419748 (or 1419746 counting only the distinct ones).

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

Adding to 2002221201212 its reverse (2121021222002), we get a palindrome (4123242423214).

The spelling of 2002221201212 in words is "two trillion, two billion, two hundred twenty-one million, two hundred one thousand, two hundred twelve".