123222501 has 12 divisors (see below), whose sum is σ = 180906700. Its totient is φ = 80801280.

The previous prime is 123222499. The next prime is 123222571. The reversal of 123222501 is 105222321.

It can be written as a sum of positive squares in 2 ways, for example, as 38564100 + 84658401 = 6210^2 + 9201^2 .

It is not a de Polignac number, because 123222501 - 2¹ = 123222499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123222571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111676 + ... + 112773.

Almost surely, 2^123222501 is an apocalyptic number.

It is an amenable number.

123222501 is a deficient number, since it is larger than the sum of its proper divisors (57684199).

123222501 is a wasteful number, since it uses less digits than its factorization.

123222501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224516 (or 224513 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 123222501 is about 11100.5630938255. The cubic root of 123222501 is about 497.6186779489.

Adding to 123222501 its reverse (105222321), we get a palindrome (228444822).

The spelling of 123222501 in words is "one hundred twenty-three million, two hundred twenty-two thousand, five hundred one".