20212122031312 has 40 divisors (see below), whose sum is σ = 39699095166720. Its totient is φ = 9967955164800.

The previous prime is 20212122031307. The next prime is 20212122031327. The reversal of 20212122031312 is 21313022121202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23353512 + ... + 24203527.

It is an arithmetic number, because the mean of its divisors is an integer number (992477379168).

Almost surely, 2^{20212122031312} is an apocalyptic number.

It is an amenable number.

20212122031312 is a deficient number, since it is larger than the sum of its proper divisors (19486973135408).

20212122031312 is a wasteful number, since it uses less digits than its factorization.

20212122031312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47557411 (or 47557405 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20212122031312 its reverse (21313022121202), we get a palindrome (41525144152514).

The spelling of 20212122031312 in words is "twenty trillion, two hundred twelve billion, one hundred twenty-two million, thirty-one thousand, three hundred twelve".