2201120123 has 4 divisors (see below), whose sum is σ = 2201214288. Its totient is φ = 2201025960.

The previous prime is 2201120111. The next prime is 2201120147. The reversal of 2201120123 is 3210211022.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3210211022 = 2 ⋅1605105511.

It is a cyclic number.

It is not a de Polignac number, because 2201120123 - 2⁶ = 2201120059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201120098 and 2201120107.

It is not an unprimeable number, because it can be changed into a prime (2201125123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17618 + ... + 68648.

It is an arithmetic number, because the mean of its divisors is an integer number (550303572).

Almost surely, 2^2201120123 is an apocalyptic number.

2201120123 is a deficient number, since it is larger than the sum of its proper divisors (94165).

2201120123 is an equidigital number, since it uses as much as digits as its factorization.

2201120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94164.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2201120123 is about 46916.0966300480. The cubic root of 2201120123 is about 1300.8121400662.

Adding to 2201120123 its reverse (3210211022), we get a palindrome (5411331145).

The spelling of 2201120123 in words is "two billion, two hundred one million, one hundred twenty thousand, one hundred twenty-three".