2400530250221 has 2 divisors, whose sum is σ = 2400530250222. Its totient is φ = 2400530250220.

The previous prime is 2400530250199. The next prime is 2400530250241. The reversal of 2400530250221 is 1220520350042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2386808704900 + 13721545321 = 1544930^2 + 117139^2 .

It is a cyclic number.

It is not a de Polignac number, because 2400530250221 - 2¹⁰ = 2400530249197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2400530250241) 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 as a sum of consecutive naturals, namely, 1200265125110 + 1200265125111.

It is an arithmetic number, because the mean of its divisors is an integer number (1200265125111).

Almost surely, 2^{2400530250221} is an apocalyptic number.

It is an amenable number.

2400530250221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2400530250221 is an equidigital number, since it uses as much as digits as its factorization.

2400530250221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 2400530250221 in words is "two trillion, four hundred billion, five hundred thirty million, two hundred fifty thousand, two hundred twenty-one".