10220081 has 4 divisors (see below), whose sum is σ = 10758000. Its totient is φ = 9682164.

The previous prime is 10220069. The next prime is 10220083. The reversal of 10220081 is 18002201.

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.

It is a cyclic number.

It is not a de Polignac number, because 10220081 - 2²² = 6025777 is a prime.

It is a super-2 number, since 2×10220081² = 208900111293122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10220083) 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 3 ways as a sum of consecutive naturals, for example, 268931 + ... + 268968.

It is an arithmetic number, because the mean of its divisors is an integer number (2689500).

Almost surely, 2^10220081 is an apocalyptic number.

It is an amenable number.

10220081 is a deficient number, since it is larger than the sum of its proper divisors (537919).

10220081 is an equidigital number, since it uses as much as digits as its factorization.

10220081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537918.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 10220081 is about 3196.8861412318. The cubic root of 10220081 is about 217.0125145862.

Adding to 10220081 its reverse (18002201), we get a palindrome (28222282).

The spelling of 10220081 in words is "ten million, two hundred twenty thousand, eighty-one".