212221133201112 has 64 divisors (see below), whose sum is σ = 607945952812800. Its totient is φ = 60474623690880.

The previous prime is 212221133201093. The next prime is 212221133201117. The reversal of 212221133201112 is 211102331122212.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221133201117) 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 15 ways as a sum of consecutive naturals, for example, 1666454839 + ... + 1666582182.

It is an arithmetic number, because the mean of its divisors is an integer number (9499155512700).

Almost surely, 2^{212221133201112} is an apocalyptic number.

It is an amenable number.

212221133201112 is an abundant number, since it is smaller than the sum of its proper divisors (395724819611688).

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

212221133201112 is a wasteful number, since it uses less digits than its factorization.

212221133201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333037416 (or 3333037412 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 212221133201112 its reverse (211102331122212), we get a palindrome (423323464323324).

The spelling of 212221133201112 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred thirty-three million, two hundred one thousand, one hundred twelve".