2444201441221 has 2 divisors, whose sum is σ = 2444201441222. Its totient is φ = 2444201441220.

The previous prime is 2444201441191. The next prime is 2444201441233. The reversal of 2444201441221 is 1221441024442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1452157553025 + 992043888196 = 1205055^2 + 996014^2 .

It is a cyclic number.

It is not a de Polignac number, because 2444201441221 - 2⁷ = 2444201441093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2444201441621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222100720610 + 1222100720611.

It is an arithmetic number, because the mean of its divisors is an integer number (1222100720611).

Almost surely, 2^{2444201441221} is an apocalyptic number.

It is an amenable number.

2444201441221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2444201441221 is an equidigital number, since it uses as much as digits as its factorization.

2444201441221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16384, while the sum is 31.

Adding to 2444201441221 its reverse (1221441024442), we get a palindrome (3665642465663).

The spelling of 2444201441221 in words is "two trillion, four hundred forty-four billion, two hundred one million, four hundred forty-one thousand, two hundred twenty-one".