20212211213012 has 192 divisors, whose sum is σ = 45378471936000. Its totient is φ = 7825173713280.

The previous prime is 20212211213011. The next prime is 20212211213041. The reversal of 20212211213012 is 21031211221202.

It is a super-2 number, since 2×20212211213012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212211213011) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 234625187 + ... + 234711317.

It is an arithmetic number, because the mean of its divisors is an integer number (236346208000).

Almost surely, 2^{20212211213012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20212211213012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22689235968000).

20212211213012 is an abundant number, since it is smaller than the sum of its proper divisors (25166260722988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20212211213012 is a wasteful number, since it uses less digits than its factorization.

20212211213012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86451 (or 86435 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20212211213012 its reverse (21031211221202), we get a palindrome (41243422434214).

The spelling of 20212211213012 in words is "twenty trillion, two hundred twelve billion, two hundred eleven million, two hundred thirteen thousand, twelve".