605222021 has 8 divisors (see below), whose sum is σ = 627922944. Its totient is φ = 582719760.

The previous prime is 605222017. The next prime is 605222027. The reversal of 605222021 is 120222506.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 605222021 - 2² = 605222017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 605221984 and 605222002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605222027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43445 + ... + 55658.

It is an arithmetic number, because the mean of its divisors is an integer number (78490368).

Almost surely, 2^605222021 is an apocalyptic number.

It is an amenable number.

605222021 is a deficient number, since it is larger than the sum of its proper divisors (22700923).

605222021 is a wasteful number, since it uses less digits than its factorization.

605222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99331.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 605222021 is about 24601.2605571341. The cubic root of 605222021 is about 845.8725023823.

Adding to 605222021 its reverse (120222506), we get a palindrome (725444527).

The spelling of 605222021 in words is "six hundred five million, two hundred twenty-two thousand, twenty-one".