10567221 has 16 divisors (see below), whose sum is σ = 16224384. Its totient is φ = 5992704.

The previous prime is 10567201. The next prime is 10567231. The reversal of 10567221 is 12276501.

10567221 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10567221 - 2⁶ = 10567157 is a prime.

It is a super-2 number, since 2×10567221² = 223332319325682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10567191 and 10567200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10567201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1041 + ... + 4713.

It is an arithmetic number, because the mean of its divisors is an integer number (1014024).

Almost surely, 2^10567221 is an apocalyptic number.

It is an amenable number.

10567221 is a deficient number, since it is larger than the sum of its proper divisors (5657163).

10567221 is a wasteful number, since it uses less digits than its factorization.

10567221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 10567221 is about 3250.7262265531. The cubic root of 10567221 is about 219.4422580114.

The spelling of 10567221 in words is "ten million, five hundred sixty-seven thousand, two hundred twenty-one".