22010111001 has 6 divisors (see below), whose sum is σ = 31792382570. Its totient is φ = 14673407328.

The previous prime is 22010110961. The next prime is 22010111009. The reversal of 22010111001 is 10011101022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20902219776 + 1107891225 = 144576^2 + 33285^2 .

It is not a de Polignac number, because 22010111001 - 2⁹ = 22010110489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 2445567889 = 22010111001 / (2 + 2 + 0 + 1 + 0 + 1 + 1 + 1 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22010111009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1222783936 + ... + 1222783953.

Almost surely, 2^22010111001 is an apocalyptic number.

It is an amenable number.

22010111001 is a deficient number, since it is larger than the sum of its proper divisors (9782271569).

22010111001 is a wasteful number, since it uses less digits than its factorization.

22010111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445567895 (or 2445567892 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 22010111001 its reverse (10011101022), we get a palindrome (32021212023).

The spelling of 22010111001 in words is "twenty-two billion, ten million, one hundred eleven thousand, one".