10221123 has 8 divisors (see below), whose sum is σ = 14867136. Its totient is φ = 6194600.

The previous prime is 10221091. The next prime is 10221149. The reversal of 10221123 is 32112201.

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 10221123 - 2⁵ = 10221091 is a prime.

It is a super-2 number, since 2×10221123² = 208942710762258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10221099 and 10221108.

It is not an unprimeable number, because it can be changed into a prime (10221173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154833 + ... + 154898.

It is an arithmetic number, because the mean of its divisors is an integer number (1858392).

Almost surely, 2^10221123 is an apocalyptic number.

10221123 is a deficient number, since it is larger than the sum of its proper divisors (4646013).

10221123 is a wasteful number, since it uses less digits than its factorization.

10221123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309745.

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

The square root of 10221123 is about 3197.0491081621. The cubic root of 10221123 is about 217.0198895882.

Adding to 10221123 its reverse (32112201), we get a palindrome (42333324).

It can be divided in two parts, 1022 and 1123, that added together give a triangular number (2145 = T₆₅).

The spelling of 10221123 in words is "ten million, two hundred twenty-one thousand, one hundred twenty-three".