45230221021 has 4 divisors (see below), whose sum is σ = 45482904000. Its totient is φ = 44977538044.

The previous prime is 45230221009. The next prime is 45230221067. The reversal of 45230221021 is 12012203254.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45230221021 - 2⁵ = 45230220989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45230220983 and 45230221001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45230221321) 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, 126341221 + ... + 126341578.

It is an arithmetic number, because the mean of its divisors is an integer number (11370726000).

Almost surely, 2^45230221021 is an apocalyptic number.

It is an amenable number.

45230221021 is a deficient number, since it is larger than the sum of its proper divisors (252682979).

45230221021 is a wasteful number, since it uses less digits than its factorization.

45230221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252682978.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 45230221021 its reverse (12012203254), we get a palindrome (57242424275).

The spelling of 45230221021 in words is "forty-five billion, two hundred thirty million, two hundred twenty-one thousand, twenty-one".