9217122123 has 18 divisors (see below), whose sum is σ = 13510970452. Its totient is φ = 5585026040.

The previous prime is 9217122121. The next prime is 9217122157. The reversal of 9217122123 is 3212217129.

It is not a de Polignac number, because 9217122123 - 2¹ = 9217122121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9217122121) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1826638 + ... + 1831676.

Almost surely, 2^9217122123 is an apocalyptic number.

9217122123 is a deficient number, since it is larger than the sum of its proper divisors (4293848329).

9217122123 is an frugal number, since it uses more digits than its factorization.

9217122123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10103 (or 5053 counting only the distinct ones).

The product of its digits is 3024, while the sum is 30.

The square root of 9217122123 is about 96005.8442127353. The cubic root of 9217122123 is about 2096.6782043384.

The spelling of 9217122123 in words is "nine billion, two hundred seventeen million, one hundred twenty-two thousand, one hundred twenty-three".