100003142221 has 4 divisors (see below), whose sum is σ = 100993272444. Its totient is φ = 99013012000.

The previous prime is 100003142207. The next prime is 100003142227. The reversal of 100003142221 is 122241300001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 69374292100 + 30628850121 = 263390^2 + 175011^2 .

It is a cyclic number.

It is not a de Polignac number, because 100003142221 - 2⁷ = 100003142093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100003142195 and 100003142204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100003142227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495064960 + ... + 495065161.

It is an arithmetic number, because the mean of its divisors is an integer number (25248318111).

Almost surely, 2^100003142221 is an apocalyptic number.

It is an amenable number.

100003142221 is a deficient number, since it is larger than the sum of its proper divisors (990130223).

100003142221 is an equidigital number, since it uses as much as digits as its factorization.

100003142221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990130222.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 100003142221 its reverse (122241300001), we get a palindrome (222244442222).

The spelling of 100003142221 in words is "one hundred billion, three million, one hundred forty-two thousand, two hundred twenty-one".