10223121 has 24 divisors (see below), whose sum is σ = 14841120. Its totient is φ = 6241536.

The previous prime is 10223113. The next prime is 10223123. The reversal of 10223121 is 12132201.

It is not a de Polignac number, because 10223121 - 2³ = 10223113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10223097 and 10223106.

It is not an unprimeable number, because it can be changed into a prime (10223123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105345 + ... + 105441.

It is an arithmetic number, because the mean of its divisors is an integer number (618380).

Almost surely, 2^10223121 is an apocalyptic number.

It is an amenable number.

10223121 is a deficient number, since it is larger than the sum of its proper divisors (4617999).

10223121 is an equidigital number, since it uses as much as digits as its factorization.

10223121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 10223121 is about 3197.3615685437. The cubic root of 10223121 is about 217.0340295051.

Adding to 10223121 its reverse (12132201), we get a palindrome (22355322).

The spelling of 10223121 in words is "ten million, two hundred twenty-three thousand, one hundred twenty-one".