209029901001 has 32 divisors (see below), whose sum is σ = 283089824640. Its totient is φ = 137178814464.

The previous prime is 209029900999. The next prime is 209029901011. The reversal of 209029901001 is 100109920902.

It is not a de Polignac number, because 209029901001 - 2¹ = 209029900999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (209029901011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57376686 + ... + 57380328.

It is an arithmetic number, because the mean of its divisors is an integer number (8846557020).

Almost surely, 2^209029901001 is an apocalyptic number.

It is an amenable number.

209029901001 is a deficient number, since it is larger than the sum of its proper divisors (74059923639).

209029901001 is a wasteful number, since it uses less digits than its factorization.

209029901001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745.

The product of its (nonzero) digits is 2916, while the sum is 33.

The spelling of 209029901001 in words is "two hundred nine billion, twenty-nine million, nine hundred one thousand, one".