22222012212101 has 8 divisors (see below), whose sum is σ = 23932778056824. Its totient is φ = 20511443551680.

The previous prime is 22222012212067. The next prime is 22222012212143. The reversal of 22222012212101 is 10121221022222.

It can be written as a sum of positive squares in 4 ways, for example, as 82860501025 + 22139151711076 = 287855^2 + 4705226^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22222012212101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222012212151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49061966 + ... + 49512831.

It is an arithmetic number, because the mean of its divisors is an integer number (2991597257103).

Almost surely, 2^{22222012212101} is an apocalyptic number.

It is an amenable number.

22222012212101 is a deficient number, since it is larger than the sum of its proper divisors (1710765844723).

22222012212101 is a wasteful number, since it uses less digits than its factorization.

22222012212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98592151.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22222012212101 its reverse (10121221022222), we get a palindrome (32343233234323).

The spelling of 22222012212101 in words is "twenty-two trillion, two hundred twenty-two billion, twelve million, two hundred twelve thousand, one hundred one".