252222100 has 36 divisors (see below), whose sum is σ = 589426684. Its totient is φ = 93127680.

The previous prime is 252222079. The next prime is 252222151. The reversal of 252222100 is 1222252.

It can be written as a sum of positive squares in 6 ways, for example, as 174724 + 252047376 = 418^2 + 15876^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95709 + ... + 98308.

Almost surely, 2^252222100 is an apocalyptic number.

252222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252222100 is an abundant number, since it is smaller than the sum of its proper divisors (337204584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252222100 is a wasteful number, since it uses less digits than its factorization.

252222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194044 (or 194037 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 252222100 is about 15881.5018181531. The cubic root of 252222100 is about 631.8214692274.

Adding to 252222100 its reverse (1222252), we get a palindrome (253444352).

The spelling of 252222100 in words is "two hundred fifty-two million, two hundred twenty-two thousand, one hundred".