212223032221 has 8 divisors (see below), whose sum is σ = 212353022720. Its totient is φ = 212093086608.

The previous prime is 212223032201. The next prime is 212223032227. The reversal of 212223032221 is 122230322212.

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 212223032221 - 2¹³ = 212223024029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212223032192 and 212223032201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212223032227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14650060 + ... + 14664538.

It is an arithmetic number, because the mean of its divisors is an integer number (26544127840).

Almost surely, 2^212223032221 is an apocalyptic number.

It is an amenable number.

212223032221 is a deficient number, since it is larger than the sum of its proper divisors (129990499).

212223032221 is a wasteful number, since it uses less digits than its factorization.

212223032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22443.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 212223032221 its reverse (122230322212), we get a palindrome (334453354433).

It can be divided in two parts, 2 and 12223032221, that multiplied together give a palindrome (24446064442).

The spelling of 212223032221 in words is "two hundred twelve billion, two hundred twenty-three million, thirty-two thousand, two hundred twenty-one".