252043222442 has 16 divisors (see below), whose sum is σ = 413136999072. Its totient is φ = 114369924720.

The previous prime is 252043222397. The next prime is 252043222549. The reversal of 252043222442 is 244222340252.

It is a junction number, because it is equal to n+sod(n) for n = 252043222399 and 252043222408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9745613 + ... + 9771440.

It is an arithmetic number, because the mean of its divisors is an integer number (25821062442).

Almost surely, 2^252043222442 is an apocalyptic number.

252043222442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

252043222442 is a deficient number, since it is larger than the sum of its proper divisors (161093776630).

252043222442 is a wasteful number, since it uses less digits than its factorization.

252043222442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19517653.

The product of its (nonzero) digits is 61440, while the sum is 32.

Adding to 252043222442 its reverse (244222340252), we get a palindrome (496265562694).

The spelling of 252043222442 in words is "two hundred fifty-two billion, forty-three million, two hundred twenty-two thousand, four hundred forty-two".