22001110021 has 16 divisors (see below), whose sum is σ = 25300641600. Its totient is φ = 18921168000.

The previous prime is 22001109953. The next prime is 22001110039. The reversal of 22001110021 is 12001110022.

It is a cyclic number.

It is not a de Polignac number, because 22001110021 - 2⁹ = 22001109509 is a prime.

It is a super-2 number, since 2×22001110021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001110051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71425 + ... + 221593.

It is an arithmetic number, because the mean of its divisors is an integer number (1581290100).

Almost surely, 2^22001110021 is an apocalyptic number.

It is an amenable number.

22001110021 is a deficient number, since it is larger than the sum of its proper divisors (3299531579).

22001110021 is a wasteful number, since it uses less digits than its factorization.

22001110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150900.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 22001110021 its reverse (12001110022), we get a palindrome (34002220043).

Subtracting from 22001110021 its reverse (12001110022), we obtain a palindrome (9999999999).

It can be divided in two parts, 220011 and 10021, that added together give a palindrome (230032).

The spelling of 22001110021 in words is "twenty-two billion, one million, one hundred ten thousand, twenty-one".