21011114 has 8 divisors (see below), whose sum is σ = 31548420. Its totient is φ = 10494976.

The previous prime is 21011083. The next prime is 21011141. The reversal of 21011114 is 41111012.

It can be written as a sum of positive squares in 2 ways, for example, as 21003889 + 7225 = 4583^2 + 85^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21011095 and 21011104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2519 + ... + 6954.

Almost surely, 2^21011114 is an apocalyptic number.

21011114 is a deficient number, since it is larger than the sum of its proper divisors (10537306).

21011114 is a wasteful number, since it uses less digits than its factorization.

21011114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10584.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 21011114 is about 4583.7881713709. The cubic root of 21011114 is about 275.9410799803.

Adding to 21011114 its reverse (41111012), we get a palindrome (62122126).

The spelling of 21011114 in words is "twenty-one million, eleven thousand, one hundred fourteen".