123222245 has 4 divisors (see below), whose sum is σ = 147866700. Its totient is φ = 98577792.

The previous prime is 123222233. The next prime is 123222259. The reversal of 123222245 is 542222321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542222321 = 15749 ⋅34429.

It can be written as a sum of positive squares in 2 ways, for example, as 94342369 + 28879876 = 9713^2 + 5374^2 .

It is a cyclic number.

It is not a de Polignac number, because 123222245 - 2¹⁰ = 123221221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123222245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12322220 + ... + 12322229.

It is an arithmetic number, because the mean of its divisors is an integer number (36966675).

Almost surely, 2^123222245 is an apocalyptic number.

It is an amenable number.

123222245 is a deficient number, since it is larger than the sum of its proper divisors (24644455).

123222245 is an equidigital number, since it uses as much as digits as its factorization.

123222245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24644454.

The product of its digits is 1920, while the sum is 23.

The square root of 123222245 is about 11100.5515628729. The cubic root of 123222245 is about 497.6183333407.

Adding to 123222245 its reverse (542222321), we get a palindrome (665444566).

The spelling of 123222245 in words is "one hundred twenty-three million, two hundred twenty-two thousand, two hundred forty-five".