100006170921 has 12 divisors (see below), whose sum is σ = 144568110960. Its totient is φ = 66617817720.

The previous prime is 100006170919. The next prime is 100006170959. The reversal of 100006170921 is 129071600001.

It is not a de Polignac number, because 100006170921 - 2¹ = 100006170919 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100006170911) 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, 4401615 + ... + 4424276.

It is an arithmetic number, because the mean of its divisors is an integer number (12047342580).

Almost surely, 2^100006170921 is an apocalyptic number.

It is an amenable number.

100006170921 is a deficient number, since it is larger than the sum of its proper divisors (44561940039).

100006170921 is a wasteful number, since it uses less digits than its factorization.

100006170921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8827156 (or 8827153 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

Adding to 100006170921 its reverse (129071600001), we get a palindrome (229077770922).

The spelling of 100006170921 in words is "one hundred billion, six million, one hundred seventy thousand, nine hundred twenty-one".