10566121 has 4 divisors (see below), whose sum is σ = 10930500. Its totient is φ = 10201744.

The previous prime is 10566107. The next prime is 10566139. The reversal of 10566121 is 12166501.

10566121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1946025 + 8620096 = 1395^2 + 2936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10566121 is a prime.

It is a super-2 number, since 2×10566121² = 223285825973282, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 10566092 and 10566101.

It is not an unprimeable number, because it can be changed into a prime (10566221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182146 + ... + 182203.

It is an arithmetic number, because the mean of its divisors is an integer number (2732625).

Almost surely, 2^10566121 is an apocalyptic number.

It is an amenable number.

10566121 is a deficient number, since it is larger than the sum of its proper divisors (364379).

10566121 is an equidigital number, since it uses as much as digits as its factorization.

10566121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364378.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 10566121 is about 3250.5570291875. The cubic root of 10566121 is about 219.4346434311.

The spelling of 10566121 in words is "ten million, five hundred sixty-six thousand, one hundred twenty-one".