140302141124221 has 2 divisors, whose sum is σ = 140302141124222. Its totient is φ = 140302141124220.

The previous prime is 140302141124153. The next prime is 140302141124279. The reversal of 140302141124221 is 122421141203041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96963684716196 + 43338456408025 = 9847014^2 + 6583195^2 .

It is a cyclic number.

It is not a de Polignac number, because 140302141124221 - 2⁹ = 140302141123709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140302141124221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140302141124281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70151070562110 + 70151070562111.

It is an arithmetic number, because the mean of its divisors is an integer number (70151070562111).

Almost surely, 2^{140302141124221} is an apocalyptic number.

It is an amenable number.

140302141124221 is a deficient number, since it is larger than the sum of its proper divisors (1).

140302141124221 is an equidigital number, since it uses as much as digits as its factorization.

140302141124221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 140302141124221 its reverse (122421141203041), we get a palindrome (262723282327262).

The spelling of 140302141124221 in words is "one hundred forty trillion, three hundred two billion, one hundred forty-one million, one hundred twenty-four thousand, two hundred twenty-one".