22220111012101 has 16 divisors (see below), whose sum is σ = 23534219110896. Its totient is φ = 20906786589696.

The previous prime is 22220111012087. The next prime is 22220111012123. The reversal of 22220111012101 is 10121011102222.

It can be written as a sum of positive squares in 8 ways, for example, as 380621133025 + 21839489879076 = 616945^2 + 4673274^2 .

It is a cyclic number.

It is not a de Polignac number, because 22220111012101 - 2³³ = 22211521077509 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 (22220117012101) 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, 1182100035 + ... + 1182118831.

It is an arithmetic number, because the mean of its divisors is an integer number (1470888694431).

Almost surely, 2^{22220111012101} is an apocalyptic number.

It is an amenable number.

22220111012101 is a deficient number, since it is larger than the sum of its proper divisors (1314108098795).

22220111012101 is a wasteful number, since it uses less digits than its factorization.

22220111012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35928.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22220111012101 its reverse (10121011102222), we get a palindrome (32341122114323).

The spelling of 22220111012101 in words is "twenty-two trillion, two hundred twenty billion, one hundred eleven million, twelve thousand, one hundred one".