20212220210012 has 48 divisors (see below), whose sum is σ = 37816121935872. Its totient is φ = 9429288232320.

The previous prime is 20212220210009. The next prime is 20212220210093. The reversal of 20212220210012 is 21001202221202.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 21196073 + ... + 22129119.

It is an arithmetic number, because the mean of its divisors is an integer number (787835873664).

Almost surely, 2^{20212220210012} is an apocalyptic number.

It is an amenable number.

20212220210012 is a deficient number, since it is larger than the sum of its proper divisors (17603901725860).

20212220210012 is a wasteful number, since it uses less digits than its factorization.

20212220210012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938858 (or 938856 counting only the distinct ones).

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

Adding to 20212220210012 its reverse (21001202221202), we get a palindrome (41213422431214).

The spelling of 20212220210012 in words is "twenty trillion, two hundred twelve billion, two hundred twenty million, two hundred ten thousand, twelve".