22421273 has 12 divisors (see below), whose sum is σ = 27455760. Its totient is φ = 18205992.

The previous prime is 22421233. The next prime is 22421281. The reversal of 22421273 is 37212422.

It is a happy number.

It is not a de Polignac number, because 22421273 - 2¹⁰ = 22420249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22421233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11111 + ... + 12972.

It is an arithmetic number, because the mean of its divisors is an integer number (2287980).

Almost surely, 2^22421273 is an apocalyptic number.

It is an amenable number.

22421273 is a deficient number, since it is larger than the sum of its proper divisors (5034487).

22421273 is a wasteful number, since it uses less digits than its factorization.

22421273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24116 (or 24109 counting only the distinct ones).

The product of its digits is 1344, while the sum is 23.

The square root of 22421273 is about 4735.1106639655. The cubic root of 22421273 is about 281.9811574688.

Adding to 22421273 its reverse (37212422), we get a palindrome (59633695).

The spelling of 22421273 in words is "twenty-two million, four hundred twenty-one thousand, two hundred seventy-three".