2212323300221 has 4 divisors (see below), whose sum is σ = 2212330018332. Its totient is φ = 2212316582112.

The previous prime is 2212323300197. The next prime is 2212323300269. The reversal of 2212323300221 is 1220033232122.

2212323300221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 289566676996 + 1922756623225 = 538114^2 + 1386635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212323300221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212323300521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2838170 + ... + 3532683.

It is an arithmetic number, because the mean of its divisors is an integer number (553082504583).

Almost surely, 2^{2212323300221} is an apocalyptic number.

It is an amenable number.

2212323300221 is a deficient number, since it is larger than the sum of its proper divisors (6718111).

2212323300221 is an equidigital number, since it uses as much as digits as its factorization.

2212323300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6718110.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2212323300221 its reverse (1220033232122), we get a palindrome (3432356532343).

The spelling of 2212323300221 in words is "two trillion, two hundred twelve billion, three hundred twenty-three million, three hundred thousand, two hundred twenty-one".