10167804221 has 4 divisors (see below), whose sum is σ = 10230183552. Its totient is φ = 10105424892.

The previous prime is 10167804187. The next prime is 10167804247. The reversal of 10167804221 is 12240876101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12240876101 = 31 ⋅394866971.

It is a cyclic number.

It is not a de Polignac number, because 10167804221 - 2¹⁰ = 10167803197 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 (10167803221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31189421 + ... + 31189746.

It is an arithmetic number, because the mean of its divisors is an integer number (2557545888).

Almost surely, 2^10167804221 is an apocalyptic number.

It is an amenable number.

10167804221 is a deficient number, since it is larger than the sum of its proper divisors (62379331).

10167804221 is an equidigital number, since it uses as much as digits as its factorization.

10167804221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62379330.

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 10167804221 in words is "ten billion, one hundred sixty-seven million, eight hundred four thousand, two hundred twenty-one".