252221103 has 6 divisors (see below), whose sum is σ = 364319384. Its totient is φ = 168147396.

The previous prime is 252221087. The next prime is 252221113. The reversal of 252221103 is 301122252.

It is not a de Polignac number, because 252221103 - 2⁴ = 252221087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252221113) 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, 14012275 + ... + 14012292.

Almost surely, 2^252221103 is an apocalyptic number.

252221103 is a deficient number, since it is larger than the sum of its proper divisors (112098281).

252221103 is a wasteful number, since it uses less digits than its factorization.

252221103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28024573 (or 28024570 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 252221103 is about 15881.4704294029. The cubic root of 252221103 is about 631.8206367246.

Adding to 252221103 its reverse (301122252), we get a palindrome (553343355).

The spelling of 252221103 in words is "two hundred fifty-two million, two hundred twenty-one thousand, one hundred three".