2206166123 has 4 divisors (see below), whose sum is σ = 2521332720. Its totient is φ = 1890999528.

The previous prime is 2206166113. The next prime is 2206166197. The reversal of 2206166123 is 3216616022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3216616022 = 2 ⋅1608308011.

It is a cyclic number.

It is not a de Polignac number, because 2206166123 - 2⁶ = 2206166059 is a prime.

It is a super-2 number, since 2×2206166123² = 9734337924545702258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2206166113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157583288 + ... + 157583301.

It is an arithmetic number, because the mean of its divisors is an integer number (630333180).

Almost surely, 2^2206166123 is an apocalyptic number.

2206166123 is a deficient number, since it is larger than the sum of its proper divisors (315166597).

2206166123 is an equidigital number, since it uses as much as digits as its factorization.

2206166123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315166596.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 2206166123 is about 46969.8426972031. The cubic root of 2206166123 is about 1301.8054053472.

The spelling of 2206166123 in words is "two billion, two hundred six million, one hundred sixty-six thousand, one hundred twenty-three".