20010202121212 has 12 divisors (see below), whose sum is σ = 35201193261696. Its totient is φ = 9952718332160.

The previous prime is 20010202121141. The next prime is 20010202121227. The reversal of 20010202121212 is 21212120201002.

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, 13095681253 + ... + 13095682780.

It is an arithmetic number, because the mean of its divisors is an integer number (2933432771808).

Almost surely, 2^{20010202121212} is an apocalyptic number.

It is an amenable number.

20010202121212 is a deficient number, since it is larger than the sum of its proper divisors (15190991140484).

20010202121212 is a wasteful number, since it uses less digits than its factorization.

20010202121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26191364228 (or 26191364226 counting only the distinct ones).

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

Adding to 20010202121212 its reverse (21212120201002), we get a palindrome (41222322322214).

The spelling of 20010202121212 in words is "twenty trillion, ten billion, two hundred two million, one hundred twenty-one thousand, two hundred twelve".