2210043221 has 2 divisors, whose sum is σ = 2210043222. Its totient is φ = 2210043220.

The previous prime is 2210043217. The next prime is 2210043239. The reversal of 2210043221 is 1223400122.

2210043221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1148260996 + 1061782225 = 33886^2 + 32585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210043221 - 2² = 2210043217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2210043221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2210043421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105021610 + 1105021611.

It is an arithmetic number, because the mean of its divisors is an integer number (1105021611).

Almost surely, 2^2210043221 is an apocalyptic number.

It is an amenable number.

2210043221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210043221 is an equidigital number, since it uses as much as digits as its factorization.

2210043221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2210043221 is about 47011.0967857590. The cubic root of 2210043221 is about 1302.5675530556.

Adding to 2210043221 its reverse (1223400122), we get a palindrome (3433443343).

The spelling of 2210043221 in words is "two billion, two hundred ten million, forty-three thousand, two hundred twenty-one".