1000112221 has 8 divisors (see below), whose sum is σ = 1028297088. Its totient is φ = 972108000.

The previous prime is 1000112219. The next prime is 1000112233. The reversal of 1000112221 is 1222110001.

1000112221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000112221 - 2¹ = 1000112219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000112198 and 1000112207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000112251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33895 + ... + 56116.

It is an arithmetic number, because the mean of its divisors is an integer number (128537136).

Almost surely, 2^1000112221 is an apocalyptic number.

It is an amenable number.

1000112221 is a deficient number, since it is larger than the sum of its proper divisors (28184867).

1000112221 is an equidigital number, since it uses as much as digits as its factorization.

1000112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90323.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1000112221 is about 31624.5509217127. The cubic root of 1000112221 is about 1000.0374056008.

Adding to 1000112221 its reverse (1222110001), we get a palindrome (2222222222).

It can be divided in two parts, 10001 and 12221, that multiplied together give a palindrome (122222221).

The spelling of 1000112221 in words is "one billion, one hundred twelve thousand, two hundred twenty-one".