21114114 has 16 divisors (see below), whose sum is σ = 48260928. Its totient is φ = 6032592.

The previous prime is 21114103. The next prime is 21114127. The reversal of 21114114 is 41141112.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21114093 and 21114102.

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, 251317 + ... + 251400.

It is an arithmetic number, because the mean of its divisors is an integer number (3016308).

Almost surely, 2^21114114 is an apocalyptic number.

21114114 is an abundant number, since it is smaller than the sum of its proper divisors (27146814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21114114 is a wasteful number, since it uses less digits than its factorization.

21114114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502729.

The product of its digits is 32, while the sum is 15.

The square root of 21114114 is about 4595.0096844294. The cubic root of 21114114 is about 276.3912483101.

Adding to 21114114 its reverse (41141112), we get a palindrome (62255226).

The spelling of 21114114 in words is "twenty-one million, one hundred fourteen thousand, one hundred fourteen".