8818950121 has 2 divisors, whose sum is σ = 8818950122. Its totient is φ = 8818950120.

The previous prime is 8818950017. The next prime is 8818950131. The reversal of 8818950121 is 1210598188.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6736305625 + 2082644496 = 82075^2 + 45636^2 .

It is a cyclic number.

It is not a de Polignac number, because 8818950121 - 2¹⁵ = 8818917353 is a prime.

It is not a weakly prime, because it can be changed into another prime (8818950131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4409475060 + 4409475061.

It is an arithmetic number, because the mean of its divisors is an integer number (4409475061).

Almost surely, 2^8818950121 is an apocalyptic number.

It is an amenable number.

8818950121 is a deficient number, since it is larger than the sum of its proper divisors (1).

8818950121 is an equidigital number, since it uses as much as digits as its factorization.

8818950121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 43.

The square root of 8818950121 is about 93909.2653629023. The cubic root of 8818950121 is about 2066.0411254760.

The spelling of 8818950121 in words is "eight billion, eight hundred eighteen million, nine hundred fifty thousand, one hundred twenty-one".