1000222112 has 24 divisors (see below), whose sum is σ = 1969909956.
Its totient is φ = 499927552.
The previous prime is 1000222061. The next prime is 1000222117. The reversal of 1000222112 is 2112220001.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 917120656 + 83101456 = 30284^2 + 9116^2
It is a super-3 number, since 3×10002221123 (a number of 28 digits) contains 333 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1000222093 and 1000222102.
It is not an unprimeable number, because it can be changed into a prime (1000222117) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139118 + ... + 146130.
Almost surely, 21000222112 is an apocalyptic number.
It is an amenable number.
1000222112 is a deficient number, since it is larger than the sum of its proper divisors (969687844).
1000222112 is an equidigital number, since it uses as much as digits as its factorization.
1000222112 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11480 (or 11472 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 11.
The square root of 1000222112 is about 31626.2883057750.
The cubic root of 1000222112 is about 1000.0740318525.
Adding to 1000222112 its reverse (2112220001), we get a palindrome (3112442113).
The spelling of 1000222112 in words is "one billion, two hundred twenty-two thousand, one hundred twelve".