289110022121 has 4 divisors (see below), whose sum is σ = 289160020992. Its totient is φ = 289060023252.

The previous prime is 289110022093. The next prime is 289110022129. The reversal of 289110022121 is 121220011982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121220011982 = 2 ⋅60610005991.

It is a cyclic number.

It is not a de Polignac number, because 289110022121 - 2¹⁸ = 289109759977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (289110022129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24990761 + ... + 25002326.

It is an arithmetic number, because the mean of its divisors is an integer number (72290005248).

Almost surely, 2^289110022121 is an apocalyptic number.

It is an amenable number.

289110022121 is a deficient number, since it is larger than the sum of its proper divisors (49998871).

289110022121 is an equidigital number, since it uses as much as digits as its factorization.

289110022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49998870.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 289110022121 in words is "two hundred eighty-nine billion, one hundred ten million, twenty-two thousand, one hundred twenty-one".