22401001 has 8 divisors (see below), whose sum is σ = 25771904. Its totient is φ = 19072800.

The previous prime is 22400971. The next prime is 22401017. The reversal of 22401001 is 10010422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22401001 - 2²³ = 14012393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22401031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9540 + ... + 11653.

It is an arithmetic number, because the mean of its divisors is an integer number (3221488).

Almost surely, 2^22401001 is an apocalyptic number.

It is an amenable number.

22401001 is a deficient number, since it is larger than the sum of its proper divisors (3370903).

22401001 is a wasteful number, since it uses less digits than its factorization.

22401001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21351.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 22401001 is about 4732.9695752244. The cubic root of 22401001 is about 281.8961482355.

Adding to 22401001 its reverse (10010422), we get a palindrome (32411423).

The spelling of 22401001 in words is "twenty-two million, four hundred one thousand, one".