21022483 has 4 divisors (see below), whose sum is σ = 21936528. Its totient is φ = 20108440.

The previous prime is 21022471. The next prime is 21022517. The reversal of 21022483 is 38422012.

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

It is not a de Polignac number, because 21022483 - 2⁵ = 21022451 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21022783) 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, 456988 + ... + 457033.

It is an arithmetic number, because the mean of its divisors is an integer number (5484132).

Almost surely, 2^21022483 is an apocalyptic number.

21022483 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21022483 is a deficient number, since it is larger than the sum of its proper divisors (914045).

21022483 is an equidigital number, since it uses as much as digits as its factorization.

21022483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914044.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 21022483 is about 4585.0281351372. The cubic root of 21022483 is about 275.9908410809.

Adding to 21022483 its reverse (38422012), we get a palindrome (59444495).

The spelling of 21022483 in words is "twenty-one million, twenty-two thousand, four hundred eighty-three".