42201000244243 has 2 divisors, whose sum is σ = 42201000244244. Its totient is φ = 42201000244242.

The previous prime is 42201000244189. The next prime is 42201000244283. The reversal of 42201000244243 is 34244200010224.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42201000244243 is a prime.

It is a super-2 number, since 2×42201000244243² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42201000244283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21100500122121 + 21100500122122.

It is an arithmetic number, because the mean of its divisors is an integer number (21100500122122).

Almost surely, 2^{42201000244243} is an apocalyptic number.

42201000244243 is a deficient number, since it is larger than the sum of its proper divisors (1).

42201000244243 is an equidigital number, since it uses as much as digits as its factorization.

42201000244243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 42201000244243 its reverse (34244200010224), we get a palindrome (76445200254467).

The spelling of 42201000244243 in words is "forty-two trillion, two hundred one billion, two hundred forty-four thousand, two hundred forty-three".