2002120121212 has 12 divisors (see below), whose sum is σ = 3709810812960. Its totient is φ = 942174174656.

The previous prime is 2002120121189. The next prime is 2002120121213. The reversal of 2002120121212 is 2121210212002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002120121213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14721471412 + ... + 14721471547.

It is an arithmetic number, because the mean of its divisors is an integer number (309150901080).

Almost surely, 2^{2002120121212} is an apocalyptic number.

It is an amenable number.

2002120121212 is a deficient number, since it is larger than the sum of its proper divisors (1707690691748).

2002120121212 is a wasteful number, since it uses less digits than its factorization.

2002120121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29442942980 (or 29442942978 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2002120121212 its reverse (2121210212002), we get a palindrome (4123330333214).

The spelling of 2002120121212 in words is "two trillion, two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred twelve".