11122002009 has 12 divisors (see below), whose sum is σ = 16066191700. Its totient is φ = 7414170624.

The previous prime is 11122001999. The next prime is 11122002113. The reversal of 11122002009 is 90020022111.

It can be written as a sum of positive squares in 2 ways, for example, as 431475984 + 10690526025 = 20772^2 + 103395^2 .

It is not a de Polignac number, because 11122002009 - 2⁴ = 11122001993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11122001982 and 11122002000.

It is not an unprimeable number, because it can be changed into a prime (11122002509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143697 + ... + 207105.

Almost surely, 2^11122002009 is an apocalyptic number.

It is an amenable number.

11122002009 is a deficient number, since it is larger than the sum of its proper divisors (4944189691).

11122002009 is a wasteful number, since it uses less digits than its factorization.

11122002009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82904 (or 82901 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 11122002009 in words is "eleven billion, one hundred twenty-two million, two thousand, nine".