21114206 has 8 divisors (see below), whose sum is σ = 33338280. Its totient is φ = 10001448.

The previous prime is 21114173. The next prime is 21114209. The reversal of 21114206 is 60241112.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277781 + ... + 277856.

It is an arithmetic number, because the mean of its divisors is an integer number (4167285).

Almost surely, 2^21114206 is an apocalyptic number.

21114206 is a deficient number, since it is larger than the sum of its proper divisors (12224074).

21114206 is a wasteful number, since it uses less digits than its factorization.

21114206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555658.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 21114206 is about 4595.0196952788. The cubic root of 21114206 is about 276.3916497471.

Adding to 21114206 its reverse (60241112), we get a palindrome (81355318).

The spelling of 21114206 in words is "twenty-one million, one hundred fourteen thousand, two hundred six".