1122001012 has 12 divisors (see below), whose sum is σ = 2142002016.
Its totient is φ = 510000440.
The previous prime is 1122000953. The next prime is 1122001031. The reversal of 1122001012 is 2101002211.
It is a self number, because there is not a number n which added to its sum of digits gives 1122001012.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12749968 + ... + 12750055.
It is an arithmetic number, because the mean of its divisors is an integer number (178500168).
Almost surely, 21122001012 is an apocalyptic number.
It is an amenable number.
1122001012 is a deficient number, since it is larger than the sum of its proper divisors (1020001004).
1122001012 is a wasteful number, since it uses less digits than its factorization.
1122001012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25500038 (or 25500036 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 10.
The square root of 1122001012 is about 33496.2835550453.
The cubic root of 1122001012 is about 1039.1169192598.
Adding to 1122001012 its reverse (2101002211), we get a palindrome (3223003223).
The spelling of 1122001012 in words is "one billion, one hundred twenty-two million, one thousand, twelve".