10206623221 has 8 divisors (see below), whose sum is σ = 10676439360. Its totient is φ = 9738977952.

The previous prime is 10206623213. The next prime is 10206623227. The reversal of 10206623221 is 12232660201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10206623221 - 2³ = 10206623213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10206623227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533095 + ... + 551908.

It is an arithmetic number, because the mean of its divisors is an integer number (1334554920).

Almost surely, 2^10206623221 is an apocalyptic number.

It is an amenable number.

10206623221 is a deficient number, since it is larger than the sum of its proper divisors (469816139).

10206623221 is a wasteful number, since it uses less digits than its factorization.

10206623221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085435.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 10206623221 in words is "ten billion, two hundred six million, six hundred twenty-three thousand, two hundred twenty-one".