22011101001 has 16 divisors (see below), whose sum is σ = 32641785600. Its totient is φ = 14659331184.

The previous prime is 22011100973. The next prime is 22011101017. The reversal of 22011101001 is 10010111022.

It is a happy number.

It is not a de Polignac number, because 22011101001 - 2⁷ = 22011100873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (22011101071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381921 + ... + 435758.

It is an arithmetic number, because the mean of its divisors is an integer number (2040111600).

Almost surely, 2^22011101001 is an apocalyptic number.

It is an amenable number.

22011101001 is a deficient number, since it is larger than the sum of its proper divisors (10630684599).

22011101001 is an equidigital number, since it uses as much as digits as its factorization.

22011101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818685 (or 818679 counting only the distinct ones).

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

Adding to 22011101001 its reverse (10010111022), we get a palindrome (32021212023).

The spelling of 22011101001 in words is "twenty-two billion, eleven million, one hundred one thousand, one".