45105241005221 has 4 divisors (see below), whose sum is σ = 45268075810572. Its totient is φ = 44942406199872.

The previous prime is 45105241005199. The next prime is 45105241005229. The reversal of 45105241005221 is 12250014250154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11675000596900 + 33430240408321 = 3416870^2 + 5781889^2 .

It is a cyclic number.

It is not a de Polignac number, because 45105241005221 - 2³⁸ = 44830363098277 is a prime.

It is a super-2 number, since 2×45105241005221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45105241005229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81417402260 + ... + 81417402813.

It is an arithmetic number, because the mean of its divisors is an integer number (11317018952643).

Almost surely, 2^{45105241005221} is an apocalyptic number.

It is an amenable number.

45105241005221 is a deficient number, since it is larger than the sum of its proper divisors (162834805351).

45105241005221 is a wasteful number, since it uses less digits than its factorization.

45105241005221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162834805350.

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 45105241005221 its reverse (12250014250154), we get a palindrome (57355255255375).

The spelling of 45105241005221 in words is "forty-five trillion, one hundred five billion, two hundred forty-one million, five thousand, two hundred twenty-one".