21106014 has 16 divisors (see below), whose sum is σ = 42399120. Its totient is φ = 7004160.

The previous prime is 21105977. The next prime is 21106037. The reversal of 21106014 is 41060112.

It is a junction number, because it is equal to n+sod(n) for n = 21105984 and 21106002.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6307 + ... + 9054.

It is an arithmetic number, because the mean of its divisors is an integer number (2649945).

Almost surely, 2^21106014 is an apocalyptic number.

21106014 is an abundant number, since it is smaller than the sum of its proper divisors (21293106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21106014 is a wasteful number, since it uses less digits than its factorization.

21106014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15595.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 21106014 is about 4594.1282089206. The cubic root of 21106014 is about 276.3558998309.

Adding to 21106014 its reverse (41060112), we get a palindrome (62166126).

The spelling of 21106014 in words is "twenty-one million, one hundred six thousand, fourteen".