21107002 has 16 divisors (see below), whose sum is σ = 36273600. Its totient is φ = 9023328.

The previous prime is 21106997. The next prime is 21107017. The reversal of 21107002 is 20070112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4749 + ... + 8047.

It is an arithmetic number, because the mean of its divisors is an integer number (2267100).

Almost surely, 2^21107002 is an apocalyptic number.

21107002 is a deficient number, since it is larger than the sum of its proper divisors (15166598).

21107002 is a wasteful number, since it uses less digits than its factorization.

21107002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3765.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 21107002 is about 4594.2357362243. The cubic root of 21107002 is about 276.3602119568.

Adding to 21107002 its reverse (20070112), we get a palindrome (41177114).

The spelling of 21107002 in words is "twenty-one million, one hundred seven thousand, two".