202242042250 has 32 divisors (see below), whose sum is σ = 378640755792. Its totient is φ = 80887489600.

The previous prime is 202242042221. The next prime is 202242042253. The reversal of 202242042250 is 52240242202.

It can be written as a sum of positive squares in 8 ways, for example, as 16607734641 + 185634307609 = 128871^2 + 430853^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (202242042253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2377452 + ... + 2461048.

Almost surely, 2^202242042250 is an apocalyptic number.

202242042250 is a deficient number, since it is larger than the sum of its proper divisors (176398713542).

202242042250 is an equidigital number, since it uses as much as digits as its factorization.

202242042250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93291 (or 93281 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

Adding to 202242042250 its reverse (52240242202), we get a palindrome (254482284452).

The spelling of 202242042250 in words is "two hundred two billion, two hundred forty-two million, forty-two thousand, two hundred fifty".