212200112221 has 8 divisors (see below), whose sum is σ = 231070903200. Its totient is φ = 194099557680.

The previous prime is 212200112209. The next prime is 212200112227. The reversal of 212200112221 is 122211002212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212200112221 - 2²¹ = 212198015069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212200112195 and 212200112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212200112227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192558535 + ... + 192559636.

It is an arithmetic number, because the mean of its divisors is an integer number (28883862900).

Almost surely, 2^212200112221 is an apocalyptic number.

It is an amenable number.

212200112221 is a deficient number, since it is larger than the sum of its proper divisors (18870790979).

212200112221 is a wasteful number, since it uses less digits than its factorization.

212200112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385118219.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212200112221 its reverse (122211002212), we get a palindrome (334411114433).

The spelling of 212200112221 in words is "two hundred twelve billion, two hundred million, one hundred twelve thousand, two hundred twenty-one".