22102210021 has 16 divisors (see below), whose sum is σ = 22710441600. Its totient is φ = 21504564288.

The previous prime is 22102210003. The next prime is 22102210033. The reversal of 22102210021 is 12001220122.

It is a happy number.

It is not a de Polignac number, because 22102210021 - 2⁹ = 22102209509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22102209983 and 22102210010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22102210001) 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 15 ways as a sum of consecutive naturals, for example, 1503535 + ... + 1518163.

It is an arithmetic number, because the mean of its divisors is an integer number (1419402600).

Almost surely, 2^22102210021 is an apocalyptic number.

It is an amenable number.

22102210021 is a deficient number, since it is larger than the sum of its proper divisors (608231579).

22102210021 is a wasteful number, since it uses less digits than its factorization.

22102210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14988.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22102210021 its reverse (12001220122), we get a palindrome (34103430143).

The spelling of 22102210021 in words is "twenty-two billion, one hundred two million, two hundred ten thousand, twenty-one".