21116182 has 16 divisors (see below), whose sum is σ = 34119360. Its totient is φ = 9769032.

The previous prime is 21116119. The next prime is 21116191. The reversal of 21116182 is 28161112.

It is a super-3 number, since 3×21116182³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

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, 4828 + ... + 8095.

It is an arithmetic number, because the mean of its divisors is an integer number (2132460).

Almost surely, 2^21116182 is an apocalyptic number.

21116182 is a deficient number, since it is larger than the sum of its proper divisors (13003178).

21116182 is a wasteful number, since it uses less digits than its factorization.

21116182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12987.

The product of its digits is 192, while the sum is 22.

The square root of 21116182 is about 4595.2347056489. The cubic root of 21116182 is about 276.4002716336.

Adding to 21116182 its reverse (28161112), we get a palindrome (49277294).

The spelling of 21116182 in words is "twenty-one million, one hundred sixteen thousand, one hundred eighty-two".