10211112009 has 36 divisors (see below), whose sum is σ = 17399154240. Its totient is φ = 5752721520.

The previous prime is 10211111987. The next prime is 10211112029. The reversal of 10211112009 is 90021111201.

It is a happy number.

It is not a de Polignac number, because 10211112009 - 2¹² = 10211107913 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10211111982 and 10211112000.

It is not an unprimeable number, because it can be changed into a prime (10211112029) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 131749 + ... + 194370.

It is an arithmetic number, because the mean of its divisors is an integer number (483309840).

Almost surely, 2^10211112009 is an apocalyptic number.

It is an amenable number.

10211112009 is a deficient number, since it is larger than the sum of its proper divisors (7188042231).

10211112009 is a wasteful number, since it uses less digits than its factorization.

10211112009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326210 (or 326200 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 10211112009 in words is "ten billion, two hundred eleven million, one hundred twelve thousand, nine".