22102221101 has 16 divisors (see below), whose sum is σ = 23707913328. Its totient is φ = 20532019200.

The previous prime is 22102221079. The next prime is 22102221109. The reversal of 22102221101 is 10112220122.

It can be written as a sum of positive squares in 8 ways, for example, as 3938190025 + 18164031076 = 62755^2 + 134774^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22102221101 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 (22102221109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439091 + ... + 486831.

It is an arithmetic number, because the mean of its divisors is an integer number (1481744583).

Almost surely, 2^22102221101 is an apocalyptic number.

It is an amenable number.

22102221101 is a deficient number, since it is larger than the sum of its proper divisors (1605692227).

22102221101 is a wasteful number, since it uses less digits than its factorization.

22102221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48112.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22102221101 its reverse (10112220122), we get a palindrome (32214441223).

The spelling of 22102221101 in words is "twenty-two billion, one hundred two million, two hundred twenty-one thousand, one hundred one".