22102021105 has 4 divisors (see below), whose sum is σ = 26522425332. Its totient is φ = 17681616880.

The previous prime is 22102021061. The next prime is 22102021121. The reversal of 22102021105 is 50112020122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17578517056 + 4523504049 = 132584^2 + 67257^2 .

It is not a de Polignac number, because 22102021105 - 2¹⁷ = 22101890033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2210202106 + ... + 2210202115.

It is an arithmetic number, because the mean of its divisors is an integer number (6630606333).

Almost surely, 2^22102021105 is an apocalyptic number.

It is an amenable number.

22102021105 is a deficient number, since it is larger than the sum of its proper divisors (4420404227).

22102021105 is an equidigital number, since it uses as much as digits as its factorization.

22102021105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4420404226.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 22102021105 its reverse (50112020122), we get a palindrome (72214041227).

The spelling of 22102021105 in words is "twenty-two billion, one hundred two million, twenty-one thousand, one hundred five".