21238119 has 30 divisors (see below), whose sum is σ = 36912744. Its totient is φ = 12133800.

The previous prime is 21238103. The next prime is 21238127. The reversal of 21238119 is 91183212.

It is not a de Polignac number, because 21238119 - 2⁴ = 21238103 is a prime.

It is a super-2 number, since 2×21238119² = 902115397316322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21238092 and 21238101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21238519) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1294 + ... + 6644.

Almost surely, 2^21238119 is an apocalyptic number.

21238119 is a deficient number, since it is larger than the sum of its proper divisors (15674625).

21238119 is an equidigital number, since it uses as much as digits as its factorization.

21238119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377 (or 5361 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 21238119 is about 4608.4833730849. The cubic root of 21238119 is about 276.9312822889.

The spelling of 21238119 in words is "twenty-one million, two hundred thirty-eight thousand, one hundred nineteen".