22001010001 has 4 divisors (see below), whose sum is σ = 22001342272. Its totient is φ = 22000677732.

The previous prime is 22001009983. The next prime is 22001010007. The reversal of 22001010001 is 10001010022.

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-22001010001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22001010007) 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, 29181 + ... + 211786.

It is an arithmetic number, because the mean of its divisors is an integer number (5500335568).

Almost surely, 2^22001010001 is an apocalyptic number.

It is an amenable number.

22001010001 is a deficient number, since it is larger than the sum of its proper divisors (332271).

22001010001 is an equidigital number, since it uses as much as digits as its factorization.

22001010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332270.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 22001010001 its reverse (10001010022), we get a palindrome (32002020023).

The spelling of 22001010001 in words is "twenty-two billion, one million, ten thousand, one".