21335119 has 16 divisors (see below), whose sum is σ = 25613280. Its totient is φ = 17556480.

The previous prime is 21335117. The next prime is 21335123. The reversal of 21335119 is 91153312.

It is a cyclic number.

It is not a de Polignac number, because 21335119 - 2¹ = 21335117 is a prime.

It is a super-2 number, since 2×21335119² = 910374605488322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21335093 and 21335102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21335113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1659 + ... + 6739.

It is an arithmetic number, because the mean of its divisors is an integer number (1600830).

Almost surely, 2^21335119 is an apocalyptic number.

21335119 is a deficient number, since it is larger than the sum of its proper divisors (4278161).

21335119 is a wasteful number, since it uses less digits than its factorization.

21335119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130.

The product of its digits is 810, while the sum is 25.

The square root of 21335119 is about 4618.9954535591. The cubic root of 21335119 is about 277.3522477251.

The spelling of 21335119 in words is "twenty-one million, three hundred thirty-five thousand, one hundred nineteen".