21201119 has 8 divisors (see below), whose sum is σ = 21669120. Its totient is φ = 20736856.

The previous prime is 21201109. The next prime is 21201121. The reversal of 21201119 is 91110212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21201119 is a prime.

It is a super-2 number, since 2×21201119² = 898974893704322, 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 = 21201097 and 21201106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21201109) 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, 12602 + ... + 14184.

It is an arithmetic number, because the mean of its divisors is an integer number (2708640).

Almost surely, 2^21201119 is an apocalyptic number.

21201119 is a deficient number, since it is larger than the sum of its proper divisors (468001).

21201119 is a wasteful number, since it uses less digits than its factorization.

21201119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 21201119 is about 4604.4672873200. The cubic root of 21201119 is about 276.7703701494.

The spelling of 21201119 in words is "twenty-one million, two hundred one thousand, one hundred nineteen".