10202112009 has 24 divisors (see below), whose sum is σ = 15213998592. Its totient is φ = 6582898080.

The previous prime is 10202111999. The next prime is 10202112091. The reversal of 10202112009 is 90021120201.

It is not a de Polignac number, because 10202112009 - 2⁵ = 10202111977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10202111982 and 10202112000.

It is not an unprimeable number, because it can be changed into a prime (10202112209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16599 + ... + 143804.

It is an arithmetic number, because the mean of its divisors is an integer number (633916608).

Almost surely, 2^10202112009 is an apocalyptic number.

It is an amenable number.

10202112009 is a deficient number, since it is larger than the sum of its proper divisors (5011886583).

10202112009 is a wasteful number, since it uses less digits than its factorization.

10202112009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160637 (or 160634 counting only the distinct ones).

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

The spelling of 10202112009 in words is "ten billion, two hundred two million, one hundred twelve thousand, nine".