21127114 has 4 divisors (see below), whose sum is σ = 31690674. Its totient is φ = 10563556.

The previous prime is 21127097. The next prime is 21127121. The reversal of 21127114 is 41172112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16265089 + 4862025 = 4033^2 + 2205^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21127091 and 21127100.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5281777 + ... + 5281780.

Almost surely, 2^21127114 is an apocalyptic number.

21127114 is a deficient number, since it is larger than the sum of its proper divisors (10563560).

21127114 is a wasteful number, since it uses less digits than its factorization.

21127114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10563559.

The product of its digits is 112, while the sum is 19.

The square root of 21127114 is about 4596.4240448418. The cubic root of 21127114 is about 276.4479615440.

Adding to 21127114 its reverse (41172112), we get a palindrome (62299226).

The spelling of 21127114 in words is "twenty-one million, one hundred twenty-seven thousand, one hundred fourteen".