21214119 has 8 divisors (see below), whose sum is σ = 29515392. Its totient is φ = 13527800.

The previous prime is 21214117. The next prime is 21214133. The reversal of 21214119 is 91141212.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21214119 - 2¹ = 21214117 is a prime.

It is a super-2 number, since 2×21214119² = 900077689892322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21214095 and 21214104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21214111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153657 + ... + 153794.

It is an arithmetic number, because the mean of its divisors is an integer number (3689424).

Almost surely, 2^21214119 is an apocalyptic number.

21214119 is a deficient number, since it is larger than the sum of its proper divisors (8301273).

21214119 is a wasteful number, since it uses less digits than its factorization.

21214119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307477.

The product of its digits is 144, while the sum is 21.

The square root of 21214119 is about 4605.8787435190. The cubic root of 21214119 is about 276.8269281650.

It can be divided in two parts, 2 and 1214119, that added together give a palindrome (1214121).

The spelling of 21214119 in words is "twenty-one million, two hundred fourteen thousand, one hundred nineteen".