39222001 has 24 divisors (see below), whose sum is σ = 49922880. Its totient is φ = 30536352.

The previous prime is 39221993. The next prime is 39222011. The reversal of 39222001 is 10022293.

It is a happy number.

It is not a de Polignac number, because 39222001 - 2³ = 39221993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39222001.

It is not an unprimeable number, because it can be changed into a prime (39222011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42220 + ... + 43138.

It is an arithmetic number, because the mean of its divisors is an integer number (2080120).

Almost surely, 2^39222001 is an apocalyptic number.

It is an amenable number.

39222001 is a deficient number, since it is larger than the sum of its proper divisors (10700879).

39222001 is a wasteful number, since it uses less digits than its factorization.

39222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 39222001 is about 6262.7470809542. The cubic root of 39222001 is about 339.7633907429.

Adding to 39222001 its reverse (10022293), we get a palindrome (49244294).

The spelling of 39222001 in words is "thirty-nine million, two hundred twenty-two thousand, one".