1000112122 has 4 divisors (see below), whose sum is σ = 1500168186. Its totient is φ = 500056060.

The previous prime is 1000112117. The next prime is 1000112123. The reversal of 1000112122 is 2212110001.

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

It can be written as a sum of positive squares in only one way, i.e., 854451361 + 145660761 = 29231^2 + 12069^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1000112099 and 1000112108.

It is not an unprimeable number, because it can be changed into a prime (1000112123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250028029 + ... + 250028032.

Almost surely, 2^1000112122 is an apocalyptic number.

1000112122 is a deficient number, since it is larger than the sum of its proper divisors (500056064).

1000112122 is an equidigital number, since it uses as much as digits as its factorization.

1000112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500056063.

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

The square root of 1000112122 is about 31624.5493564730. The cubic root of 1000112122 is about 1000.0373726033.

Adding to 1000112122 its reverse (2212110001), we get a palindrome (3212222123).

The spelling of 1000112122 in words is "one billion, one hundred twelve thousand, one hundred twenty-two".