244013202221 has 2 divisors, whose sum is σ = 244013202222. Its totient is φ = 244013202220.

The previous prime is 244013202211. The next prime is 244013202263. The reversal of 244013202221 is 122202310442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197923552996 + 46089649225 = 444886^2 + 214685^2 .

It is a cyclic number.

It is not a de Polignac number, because 244013202221 - 2²⁶ = 243946093357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244013202211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122006601110 + 122006601111.

It is an arithmetic number, because the mean of its divisors is an integer number (122006601111).

Almost surely, 2^244013202221 is an apocalyptic number.

It is an amenable number.

244013202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

244013202221 is an equidigital number, since it uses as much as digits as its factorization.

244013202221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 244013202221 its reverse (122202310442), we get a palindrome (366215512663).

The spelling of 244013202221 in words is "two hundred forty-four billion, thirteen million, two hundred two thousand, two hundred twenty-one".