21112298 has 8 divisors (see below), whose sum is σ = 33045408. Its totient is φ = 10097164.

The previous prime is 21112291. The next prime is 21112339. The reversal of 21112298 is 89221112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (21112291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229436 + ... + 229527.

It is an arithmetic number, because the mean of its divisors is an integer number (4130676).

Almost surely, 2^21112298 is an apocalyptic number.

21112298 is a deficient number, since it is larger than the sum of its proper divisors (11933110).

21112298 is a wasteful number, since it uses less digits than its factorization.

21112298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458988.

The product of its digits is 576, while the sum is 26.

The square root of 21112298 is about 4594.8120745032. The cubic root of 21112298 is about 276.3833240547.

The spelling of 21112298 in words is "twenty-one million, one hundred twelve thousand, two hundred ninety-eight".