22421201 has 4 divisors (see below), whose sum is σ = 24459504. Its totient is φ = 20382900.

The previous prime is 22421183. The next prime is 22421233. The reversal of 22421201 is 10212422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22421201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22421281) 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 3 ways as a sum of consecutive naturals, for example, 1019135 + ... + 1019156.

It is an arithmetic number, because the mean of its divisors is an integer number (6114876).

Almost surely, 2^22421201 is an apocalyptic number.

It is an amenable number.

22421201 is a deficient number, since it is larger than the sum of its proper divisors (2038303).

22421201 is a wasteful number, since it uses less digits than its factorization.

22421201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038302.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 22421201 is about 4735.1030611804. The cubic root of 22421201 is about 281.9808556324.

Adding to 22421201 its reverse (10212422), we get a palindrome (32633623).

It can be divided in two parts, 22421 and 201, that added together give a palindrome (22622).

The spelling of 22421201 in words is "twenty-two million, four hundred twenty-one thousand, two hundred one".