8958225121 has 4 divisors (see below), whose sum is σ = 8959490244. Its totient is φ = 8956960000.

The previous prime is 8958225119. The next prime is 8958225139. The reversal of 8958225121 is 1215228598.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 404010000 + 8554215121 = 20100^2 + 92489^2 .

It is a cyclic number.

It is not a de Polignac number, because 8958225121 - 2¹ = 8958225119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8958225181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621880 + ... + 636121.

It is an arithmetic number, because the mean of its divisors is an integer number (2239872561).

Almost surely, 2^8958225121 is an apocalyptic number.

It is an amenable number.

8958225121 is a deficient number, since it is larger than the sum of its proper divisors (1265123).

8958225121 is a wasteful number, since it uses less digits than its factorization.

8958225121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265122.

The product of its digits is 115200, while the sum is 43.

The square root of 8958225121 is about 94647.9007743965. The cubic root of 8958225121 is about 2076.8604881015.

The spelling of 8958225121 in words is "eight billion, nine hundred fifty-eight million, two hundred twenty-five thousand, one hundred twenty-one".