20212011021212 has 48 divisors (see below), whose sum is σ = 37273821312000. Its totient is φ = 9563526771264.

The previous prime is 20212011021203. The next prime is 20212011021239. The reversal of 20212011021212 is 21212011021202.

It is a super-2 number, since 2×20212011021212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742011089 + ... + 742038327.

It is an arithmetic number, because the mean of its divisors is an integer number (776537944000).

Almost surely, 2^{20212011021212} is an apocalyptic number.

It is an amenable number.

20212011021212 is a deficient number, since it is larger than the sum of its proper divisors (17061810290788).

20212011021212 is a wasteful number, since it uses less digits than its factorization.

20212011021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37698 (or 37696 counting only the distinct ones).

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

Adding to 20212011021212 its reverse (21212011021202), we get a palindrome (41424022042414).

The spelling of 20212011021212 in words is "twenty trillion, two hundred twelve billion, eleven million, twenty-one thousand, two hundred twelve".