88822121 has 4 divisors (see below), whose sum is σ = 89039700. Its totient is φ = 88604544.

The previous prime is 88822087. The next prime is 88822171. The reversal of 88822121 is 12122888.

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 58736896 + 30085225 = 7664^2 + 5485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88822121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88822171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108176 + ... + 108993.

It is an arithmetic number, because the mean of its divisors is an integer number (22259925).

Almost surely, 2^88822121 is an apocalyptic number.

It is an amenable number.

88822121 is a deficient number, since it is larger than the sum of its proper divisors (217579).

88822121 is a wasteful number, since it uses less digits than its factorization.

88822121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217578.

The product of its digits is 4096, while the sum is 32.

The square root of 88822121 is about 9424.5488486187. The cubic root of 88822121 is about 446.1768638366.

The spelling of 88822121 in words is "eighty-eight million, eight hundred twenty-two thousand, one hundred twenty-one".