22201212112001 has 8 divisors (see below), whose sum is σ = 23933469522984. Its totient is φ = 20472450681600.

The previous prime is 22201212111997. The next prime is 22201212112031. The reversal of 22201212112001 is 10021121210222.

It can be written as a sum of positive squares in 4 ways, for example, as 9588628095601 + 12612584016400 = 3096551^2 + 3551420^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22201212112001 - 2² = 22201212111997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22201212112031) 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 7 ways as a sum of consecutive naturals, for example, 873981950 + ... + 874007351.

It is an arithmetic number, because the mean of its divisors is an integer number (2991683690373).

Almost surely, 2^{22201212112001} is an apocalyptic number.

It is an amenable number.

22201212112001 is a deficient number, since it is larger than the sum of its proper divisors (1732257410983).

22201212112001 is a wasteful number, since it uses less digits than its factorization.

22201212112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747990291.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22201212112001 its reverse (10021121210222), we get a palindrome (32222333322223).

The spelling of 22201212112001 in words is "twenty-two trillion, two hundred one billion, two hundred twelve million, one hundred twelve thousand, one".