1121002112 has 16 divisors (see below), whose sum is σ = 2233246650. Its totient is φ = 560500992.

The previous prime is 1121002097. The next prime is 1121002121. The reversal of 1121002112 is 2112001211.

It can be written as a sum of positive squares in only one way, i.e., 995023936 + 125978176 = 31544^2 + 11224^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 1121002093 and 1121002102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4378787 + ... + 4379042.

Almost surely, 2^1121002112 is an apocalyptic number.

It is an amenable number.

1121002112 is a deficient number, since it is larger than the sum of its proper divisors (1112244538).

1121002112 is an frugal number, since it uses more digits than its factorization.

1121002112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8757843 (or 8757831 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 1121002112 is about 33481.3696255096. The cubic root of 1121002112 is about 1038.8084578405.

Adding to 1121002112 its reverse (2112001211), we get a palindrome (3233003323).

Subtracting 1121002112 from its reverse (2112001211), we obtain a palindrome (990999099).

The spelling of 1121002112 in words is "one billion, one hundred twenty-one million, two thousand, one hundred twelve".