21200119 has 4 divisors (see below), whose sum is σ = 21213144. Its totient is φ = 21187096.

The previous prime is 21200117. The next prime is 21200129. The reversal of 21200119 is 91100212.

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

It is a cyclic number.

It is not a de Polignac number, because 21200119 - 2¹ = 21200117 is a prime.

It is a super-2 number, since 2×21200119² = 898890091228322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3652 + ... + 7465.

It is an arithmetic number, because the mean of its divisors is an integer number (5303286).

Almost surely, 2^21200119 is an apocalyptic number.

21200119 is a deficient number, since it is larger than the sum of its proper divisors (13025).

21200119 is a wasteful number, since it uses less digits than its factorization.

21200119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13024.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 21200119 is about 4604.3586958446. The cubic root of 21200119 is about 276.7660185753.

The spelling of 21200119 in words is "twenty-one million, two hundred thousand, one hundred nineteen".