20020211211212 has 24 divisors (see below), whose sum is σ = 35314746302976. Its totient is φ = 9930299355648.

The previous prime is 20020211211197. The next prime is 20020211211269. The reversal of 20020211211212 is 21211211202002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3174908 + ... + 7079580.

It is an arithmetic number, because the mean of its divisors is an integer number (1471447762624).

Almost surely, 2^{20020211211212} is an apocalyptic number.

It is an amenable number.

20020211211212 is a deficient number, since it is larger than the sum of its proper divisors (15294535091764).

20020211211212 is a wasteful number, since it uses less digits than its factorization.

20020211211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3914897 (or 3914895 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20020211211212 its reverse (21211211202002), we get a palindrome (41231422413214).

The spelling of 20020211211212 in words is "twenty trillion, twenty billion, two hundred eleven million, two hundred eleven thousand, two hundred twelve".