45072265029221 has 2 divisors, whose sum is σ = 45072265029222. Its totient is φ = 45072265029220.

The previous prime is 45072265029157. The next prime is 45072265029247. The reversal of 45072265029221 is 12292056227054.

45072265029221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39231294453121 + 5840970576100 = 6263489^2 + 2416810^2 .

It is a cyclic number.

It is not a de Polignac number, because 45072265029221 - 2⁶ = 45072265029157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45072265029521) 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, 22536132514610 + 22536132514611.

It is an arithmetic number, because the mean of its divisors is an integer number (22536132514611).

Almost surely, 2^{45072265029221} is an apocalyptic number.

It is an amenable number.

45072265029221 is a deficient number, since it is larger than the sum of its proper divisors (1).

45072265029221 is an equidigital number, since it uses as much as digits as its factorization.

45072265029221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 45072265029221 in words is "forty-five trillion, seventy-two billion, two hundred sixty-five million, twenty-nine thousand, two hundred twenty-one".