20020020211212 has 24 divisors (see below), whose sum is σ = 53386720563456. Its totient is φ = 5720005774608.

The previous prime is 20020020211157. The next prime is 20020020211229. The reversal of 20020020211212 is 21211202002002.

It is a junction number, because it is equal to n+sod(n) for n = 20020020211191 and 20020020211200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119166786888 + ... + 119166787055.

It is an arithmetic number, because the mean of its divisors is an integer number (2224446690144).

Almost surely, 2^{20020020211212} is an apocalyptic number.

It is an amenable number.

20020020211212 is an abundant number, since it is smaller than the sum of its proper divisors (33366700352244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20020020211212 is a wasteful number, since it uses less digits than its factorization.

20020020211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238333573957 (or 238333573955 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20020020211212 its reverse (21211202002002), we get a palindrome (41231222213214).

The spelling of 20020020211212 in words is "twenty trillion, twenty billion, twenty million, two hundred eleven thousand, two hundred twelve".