21920119 has 8 divisors (see below), whose sum is σ = 23655632. Its totient is φ = 20191680.

The previous prime is 21920113. The next prime is 21920141. The reversal of 21920119 is 91102912.

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 21920119 - 2⁷ = 21919991 is a prime.

It is a super-2 number, since 2×21920119² = 960983233948322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21920093 and 21920102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21920113) 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, 5947 + ... + 8899.

It is an arithmetic number, because the mean of its divisors is an integer number (2956954).

Almost surely, 2^21920119 is an apocalyptic number.

21920119 is a deficient number, since it is larger than the sum of its proper divisors (1735513).

21920119 is a wasteful number, since it uses less digits than its factorization.

21920119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 21920119 is about 4681.8926728408. The cubic root of 21920119 is about 279.8643858584.

The spelling of 21920119 in words is "twenty-one million, nine hundred twenty thousand, one hundred nineteen".