45003020421221 has 2 divisors, whose sum is σ = 45003020421222. Its totient is φ = 45003020421220.

The previous prime is 45003020421199. The next prime is 45003020421259. The reversal of 45003020421221 is 12212402030054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29669961516196 + 15333058905025 = 5447014^2 + 3915745^2 .

It is a cyclic number.

It is not a de Polignac number, because 45003020421221 - 2⁶ = 45003020421157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45003020427221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22501510210610 + 22501510210611.

It is an arithmetic number, because the mean of its divisors is an integer number (22501510210611).

Almost surely, 2^{45003020421221} is an apocalyptic number.

It is an amenable number.

45003020421221 is a deficient number, since it is larger than the sum of its proper divisors (1).

45003020421221 is an equidigital number, since it uses as much as digits as its factorization.

45003020421221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 45003020421221 its reverse (12212402030054), we get a palindrome (57215422451275).

The spelling of 45003020421221 in words is "forty-five trillion, three billion, twenty million, four hundred twenty-one thousand, two hundred twenty-one".