12029999 has 4 divisors (see below), whose sum is σ = 12737664. Its totient is φ = 11322336.

The previous prime is 12029987. The next prime is 12030017. The reversal of 12029999 is 99992021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99992021 = 3119 ⋅32059.

It is a cyclic number.

It is not a de Polignac number, because 12029999 - 2¹² = 12025903 is a prime.

It is a Duffinian number.

12029999 is a modest number, since divided by 9999 gives 1202 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12029929) 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, 353807 + ... + 353840.

It is an arithmetic number, because the mean of its divisors is an integer number (3184416).

Almost surely, 2^12029999 is an apocalyptic number.

12029999 is a deficient number, since it is larger than the sum of its proper divisors (707665).

12029999 is an equidigital number, since it uses as much as digits as its factorization.

12029999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707664.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 12029999 is about 3468.4288950474. The cubic root of 12029999 is about 229.1334691012.

The spelling of 12029999 in words is "twelve million, twenty-nine thousand, nine hundred ninety-nine".