21110702 has 16 divisors (see below), whose sum is σ = 33799680. Its totient is φ = 9854208.

The previous prime is 21110701. The next prime is 21110707. The reversal of 21110702 is 20701112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110701) 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 7 ways as a sum of consecutive naturals, for example, 1874 + ... + 6762.

It is an arithmetic number, because the mean of its divisors is an integer number (2112480).

Almost surely, 2^21110702 is an apocalyptic number.

21110702 is a deficient number, since it is larger than the sum of its proper divisors (12688978).

21110702 is a wasteful number, since it uses less digits than its factorization.

21110702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 21110702 is about 4594.6383970885. The cubic root of 21110702 is about 276.3763594110.

Adding to 21110702 its reverse (20701112), we get a palindrome (41811814).

It can be divided in two parts, 21110 and 702, that added together give a palindrome (21812).

The spelling of 21110702 in words is "twenty-one million, one hundred ten thousand, seven hundred two".