2101422243243 has 16 divisors (see below), whose sum is σ = 2949395932800. Its totient is φ = 1327199927040.

The previous prime is 2101422243199. The next prime is 2101422243301. The reversal of 2101422243243 is 3423422241012.

It is not a de Polignac number, because 2101422243243 - 2¹³ = 2101422235051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2101422243243.

It is not an unprimeable number, because it can be changed into a prime (2101422243343) 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 15 ways as a sum of consecutive naturals, for example, 8781403 + ... + 9017531.

It is an arithmetic number, because the mean of its divisors is an integer number (184337245800).

Almost surely, 2^{2101422243243} is an apocalyptic number.

2101422243243 is a deficient number, since it is larger than the sum of its proper divisors (847973689557).

2101422243243 is a wasteful number, since it uses less digits than its factorization.

2101422243243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392282.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 2101422243243 its reverse (3423422241012), we get a palindrome (5524844484255).

The spelling of 2101422243243 in words is "two trillion, one hundred one billion, four hundred twenty-two million, two hundred forty-three thousand, two hundred forty-three".