22222220112001 has 64 divisors (see below), whose sum is σ = 29503522944000. Its totient is φ = 16239435227136.

The previous prime is 22222220111989. The next prime is 22222220112121. The reversal of 22222220112001 is 10021102222222.

It is a cyclic number.

It is not a de Polignac number, because 22222220112001 - 2⁵ = 22222220111969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22222220112001.

It is not an unprimeable number, because it can be changed into a prime (22222220112401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21978855 + ... + 22967683.

It is an arithmetic number, because the mean of its divisors is an integer number (460992546000).

Almost surely, 2^{22222220112001} is an apocalyptic number.

It is an amenable number.

22222220112001 is a deficient number, since it is larger than the sum of its proper divisors (7281302831999).

22222220112001 is a wasteful number, since it uses less digits than its factorization.

22222220112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989138.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22222220112001 its reverse (10021102222222), we get a palindrome (32243322334223).

The spelling of 22222220112001 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty million, one hundred twelve thousand, one".