4243222122001 has 4 divisors (see below), whose sum is σ = 4357903801012. Its totient is φ = 4128540442992.

The previous prime is 4243222121987. The next prime is 4243222122037. The reversal of 4243222122001 is 1002212223424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3801528962001 + 441693160000 = 1949751^2 + 664600^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4243222122001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4243222122091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57340839450 + ... + 57340839523.

It is an arithmetic number, because the mean of its divisors is an integer number (1089475950253).

Almost surely, 2^{4243222122001} is an apocalyptic number.

It is an amenable number.

4243222122001 is a deficient number, since it is larger than the sum of its proper divisors (114681679011).

4243222122001 is a wasteful number, since it uses less digits than its factorization.

4243222122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114681679010.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 4243222122001 its reverse (1002212223424), we get a palindrome (5245434345425).

The spelling of 4243222122001 in words is "four trillion, two hundred forty-three billion, two hundred twenty-two million, one hundred twenty-two thousand, one".