10220581 has 8 divisors (see below), whose sum is σ = 11703104. Its totient is φ = 8743680.

The previous prime is 10220563. The next prime is 10220591. The reversal of 10220581 is 18502201.

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

It is a cyclic number.

It is not a de Polignac number, because 10220581 - 2⁹ = 10220069 is a prime.

It is a super-2 number, since 2×10220581² = 208920551955122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3781 + ... + 5893.

It is an arithmetic number, because the mean of its divisors is an integer number (1462888).

Almost surely, 2^10220581 is an apocalyptic number.

It is an amenable number.

10220581 is a deficient number, since it is larger than the sum of its proper divisors (1482523).

10220581 is an equidigital number, since it uses as much as digits as its factorization.

10220581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 10220581 is about 3196.9643413714. The cubic root of 10220581 is about 217.0160535173.

Adding to 10220581 its reverse (18502201), we get a palindrome (28722782).

It can be divided in two parts, 10220 and 581, that added together give a palindrome (10801).

The spelling of 10220581 in words is "ten million, two hundred twenty thousand, five hundred eighty-one".