2142204330401 has 4 divisors (see below), whose sum is σ = 2142211864212. Its totient is φ = 2142196796592.

The previous prime is 2142204330377. The next prime is 2142204330439. The reversal of 2142204330401 is 1040334022412.

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 1396235277376 + 745969053025 = 1181624^2 + 863695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2142204330401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142204330451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3322946 + ... + 3914891.

It is an arithmetic number, because the mean of its divisors is an integer number (535552966053).

Almost surely, 2^{2142204330401} is an apocalyptic number.

It is an amenable number.

2142204330401 is a deficient number, since it is larger than the sum of its proper divisors (7533811).

2142204330401 is an equidigital number, since it uses as much as digits as its factorization.

2142204330401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7533810.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 2142204330401 its reverse (1040334022412), we get a palindrome (3182538352813).

The spelling of 2142204330401 in words is "two trillion, one hundred forty-two billion, two hundred four million, three hundred thirty thousand, four hundred one".