20212002221212 has 48 divisors (see below), whose sum is σ = 38272367637504. Its totient is φ = 9319569840000.

The previous prime is 20212002221209. The next prime is 20212002221221. The reversal of 20212002221212 is 21212220021202.

It is a self number, because there is not a number n which added to its sum of digits gives 20212002221212.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 46009414 + ... + 46446637.

It is an arithmetic number, because the mean of its divisors is an integer number (797340992448).

Almost surely, 2^{20212002221212} is an apocalyptic number.

It is an amenable number.

20212002221212 is a deficient number, since it is larger than the sum of its proper divisors (18060365416292).

20212002221212 is a wasteful number, since it uses less digits than its factorization.

20212002221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92456170 (or 92456168 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20212002221212 its reverse (21212220021202), we get a palindrome (41424222242414).

The spelling of 20212002221212 in words is "twenty trillion, two hundred twelve billion, two million, two hundred twenty-one thousand, two hundred twelve".