12089121 has 16 divisors (see below), whose sum is σ = 18061248. Its totient is φ = 7128000.

The previous prime is 12089117. The next prime is 12089131. The reversal of 12089121 is 12198021.

12089121 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12089121 - 2² = 12089117 is a prime.

It is a super-2 number, since 2×12089121² = 292293693105282, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 12089091 and 12089100.

It is not an unprimeable number, because it can be changed into a prime (12089131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3730 + ... + 6171.

It is an arithmetic number, because the mean of its divisors is an integer number (1128828).

Almost surely, 2^12089121 is an apocalyptic number.

12089121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12089121 is a deficient number, since it is larger than the sum of its proper divisors (5972127).

12089121 is a wasteful number, since it uses less digits than its factorization.

12089121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9952.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 12089121 is about 3476.9413282366. The cubic root of 12089121 is about 229.5082182921.

Subtracting 12089121 from its reverse (12198021), we obtain a square (108900 = 330²).

The spelling of 12089121 in words is "twelve million, eighty-nine thousand, one hundred twenty-one".