10221112009 has 16 divisors (see below), whose sum is σ = 10485844992. Its totient is φ = 9960461568.

The previous prime is 10221112003. The next prime is 10221112039. The reversal of 10221112009 is 90021112201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 10221112009 - 2¹⁷ = 10220980937 is a prime.

It is a super-3 number, since 3×10221112009³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10221112003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2227932 + ... + 2232514.

It is an arithmetic number, because the mean of its divisors is an integer number (655365312).

Almost surely, 2^10221112009 is an apocalyptic number.

It is an amenable number.

10221112009 is a deficient number, since it is larger than the sum of its proper divisors (264732983).

10221112009 is a wasteful number, since it uses less digits than its factorization.

10221112009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 10221112009 in words is "ten billion, two hundred twenty-one million, one hundred twelve thousand, nine".