22000901 has 4 divisors (see below), whose sum is σ = 23693292. Its totient is φ = 20308512.

The previous prime is 22000897. The next prime is 22000919. The reversal of 22000901 is 10900022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6120676 + 15880225 = 2474^2 + 3985^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000901 - 2² = 22000897 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000921) 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, 846176 + ... + 846201.

It is an arithmetic number, because the mean of its divisors is an integer number (5923323).

Almost surely, 2^22000901 is an apocalyptic number.

It is an amenable number.

22000901 is a deficient number, since it is larger than the sum of its proper divisors (1692391).

22000901 is a wasteful number, since it uses less digits than its factorization.

22000901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692390.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 22000901 is about 4690.5118057628. The cubic root of 22000901 is about 280.2077582216.

Adding to 22000901 its reverse (10900022), we get a palindrome (32900923).

The spelling of 22000901 in words is "twenty-two million, nine hundred one", and thus it is an aban number.