22221222101 has 16 divisors (see below), whose sum is σ = 24494885184. Its totient is φ = 20028484224.

The previous prime is 22221222083. The next prime is 22221222103. The reversal of 22221222101 is 10122212222.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22221222101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22221222101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221222103) 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, 3158750 + ... + 3165776.

It is an arithmetic number, because the mean of its divisors is an integer number (1530930324).

Almost surely, 2^22221222101 is an apocalyptic number.

It is an amenable number.

22221222101 is a deficient number, since it is larger than the sum of its proper divisors (2273663083).

22221222101 is a wasteful number, since it uses less digits than its factorization.

22221222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12740.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22221222101 its reverse (10122212222), we get a palindrome (32343434323).

The spelling of 22221222101 in words is "twenty-two billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred one".