43422020410221 has 6 divisors (see below), whose sum is σ = 62720696148110. Its totient is φ = 28948013606808.

The previous prime is 43422020410207. The next prime is 43422020410231. The reversal of 43422020410221 is 12201402022434.

It is a happy number.

43422020410221 is a `hidden beast` number, since 4 + 3 + 4 + 2 + 2 + 0 + 20 + 410 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35782960116996 + 7639060293225 = 5981886^2 + 2763885^2 .

It is not a de Polignac number, because 43422020410221 - 2⁶ = 43422020410157 is a prime.

It is a super-2 number, since 2×43422020410221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43422020410201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2412334467226 + ... + 2412334467243.

Almost surely, 2^{43422020410221} is an apocalyptic number.

It is an amenable number.

43422020410221 is a deficient number, since it is larger than the sum of its proper divisors (19298675737889).

43422020410221 is a wasteful number, since it uses less digits than its factorization.

43422020410221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824668934475 (or 4824668934472 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 43422020410221 its reverse (12201402022434), we get a palindrome (55623422432655).

The spelling of 43422020410221 in words is "forty-three trillion, four hundred twenty-two billion, twenty million, four hundred ten thousand, two hundred twenty-one".