412302221 has 4 divisors (see below), whose sum is σ = 415069500. Its totient is φ = 409534944.

The previous prime is 412302203. The next prime is 412302239. The reversal of 412302221 is 122203214.

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

It is an interprime number because it is at equal distance from previous prime (412302203) and next prime (412302239).

It can be written as a sum of positive squares in 2 ways, for example, as 229674025 + 182628196 = 15155^2 + 13514^2 .

It is a cyclic number.

It is not a de Polignac number, because 412302221 - 2⁶ = 412302157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 412302221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412302271) 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, 1383416 + ... + 1383713.

It is an arithmetic number, because the mean of its divisors is an integer number (103767375).

Almost surely, 2^412302221 is an apocalyptic number.

It is an amenable number.

412302221 is a deficient number, since it is larger than the sum of its proper divisors (2767279).

412302221 is a wasteful number, since it uses less digits than its factorization.

412302221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2767278.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 412302221 is about 20305.2264454253. The cubic root of 412302221 is about 744.2837859532.

Adding to 412302221 its reverse (122203214), we get a palindrome (534505435).

The spelling of 412302221 in words is "four hundred twelve million, three hundred two thousand, two hundred twenty-one".