20020012221212 has 12 divisors (see below), whose sum is σ = 36878969881320. Its totient is φ = 9483163683696.

The previous prime is 20020012221169. The next prime is 20020012221259. The reversal of 20020012221212 is 21212221002002.

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, 131710606643 + ... + 131710606794.

It is an arithmetic number, because the mean of its divisors is an integer number (3073247490110).

Almost surely, 2^{20020012221212} is an apocalyptic number.

It is an amenable number.

20020012221212 is a deficient number, since it is larger than the sum of its proper divisors (16858957660108).

20020012221212 is a wasteful number, since it uses less digits than its factorization.

20020012221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263421213460 (or 263421213458 counting only the distinct ones).

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

Adding to 20020012221212 its reverse (21212221002002), we get a palindrome (41232233223214).

The spelling of 20020012221212 in words is "twenty trillion, twenty billion, twelve million, two hundred twenty-one thousand, two hundred twelve".