212021321311200 has 144 divisors (see below), whose sum is σ = 696460864120560. Its totient is φ = 56020312350720.

The previous prime is 212021321311199. The next prime is 212021321311213. The reversal of 212021321311200 is 2113123120212.

It is a super-2 number, since 2×212021321311200² (a number of 29 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 23 ways as a sum of consecutive naturals, for example, 404977929 + ... + 405501128.

It is an arithmetic number, because the mean of its divisors is an integer number (4836533778615).

Almost surely, 2^{212021321311200} is an apocalyptic number.

212021321311200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021321311200 is an abundant number, since it is smaller than the sum of its proper divisors (484439542809360).

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

212021321311200 is a wasteful number, since it uses less digits than its factorization.

212021321311200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810479189 (or 810479176 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 212021321311200 its reverse (2113123120212), we get a palindrome (214134444431412).

The spelling of 212021321311200 in words is "two hundred twelve trillion, twenty-one billion, three hundred twenty-one million, three hundred eleven thousand, two hundred".