22025001 has 4 divisors (see below), whose sum is σ = 29366672. Its totient is φ = 14683332.

The previous prime is 22024997. The next prime is 22025021. The reversal of 22025001 is 10052022.

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 not a de Polignac number, because 22025001 - 2² = 22024997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22025021) 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, 3670831 + ... + 3670836.

It is an arithmetic number, because the mean of its divisors is an integer number (7341668).

Almost surely, 2^22025001 is an apocalyptic number.

It is an amenable number.

22025001 is a deficient number, since it is larger than the sum of its proper divisors (7341671).

22025001 is an equidigital number, since it uses as much as digits as its factorization.

22025001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7341670.

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 22025001 is about 4693.0801186428. The cubic root of 22025001 is about 280.3100349829.

Adding to 22025001 its reverse (10052022), we get a palindrome (32077023).

The spelling of 22025001 in words is "twenty-two million, twenty-five thousand, one".