22022221001 has 4 divisors (see below), whose sum is σ = 24024241104. Its totient is φ = 20020200900.

The previous prime is 22022220991. The next prime is 22022221003. The reversal of 22022221001 is 10012222022.

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 not a de Polignac number, because 22022221001 - 2¹⁰ = 22022219977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22022221003) 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, 1001010035 + ... + 1001010056.

It is an arithmetic number, because the mean of its divisors is an integer number (6006060276).

Almost surely, 2^22022221001 is an apocalyptic number.

It is an amenable number.

22022221001 is a deficient number, since it is larger than the sum of its proper divisors (2002020103).

22022221001 is a wasteful number, since it uses less digits than its factorization.

22022221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002020102.

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

Adding to 22022221001 its reverse (10012222022), we get a palindrome (32034443023).

The spelling of 22022221001 in words is "twenty-two billion, twenty-two million, two hundred twenty-one thousand, one".