22221122101 has 4 divisors (see below), whose sum is σ = 22450205932. Its totient is φ = 21992038272.

The previous prime is 22221122087. The next prime is 22221122107. The reversal of 22221122101 is 10122112222.

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 7730981476 + 14490140625 = 87926^2 + 120375^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221122101 - 2⁷ = 22221121973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221122107) 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 3 ways as a sum of consecutive naturals, for example, 114541770 + ... + 114541963.

It is an arithmetic number, because the mean of its divisors is an integer number (5612551483).

Almost surely, 2^22221122101 is an apocalyptic number.

It is an amenable number.

22221122101 is a deficient number, since it is larger than the sum of its proper divisors (229083831).

22221122101 is an equidigital number, since it uses as much as digits as its factorization.

22221122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229083830.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22221122101 its reverse (10122112222), we get a palindrome (32343234323).

The spelling of 22221122101 in words is "twenty-two billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred one".