42865521333122 has 8 divisors (see below), whose sum is σ = 64309656204156. Its totient is φ = 21428969265072.

The previous prime is 42865521333109. The next prime is 42865521333127. The reversal of 42865521333122 is 22133312556824.

It can be written as a sum of positive squares in 2 ways, for example, as 42711047966161 + 154473366961 = 6535369^2 + 393031^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42865521333127) 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, 1895686613 + ... + 1895709224.

Almost surely, 2^{42865521333122} is an apocalyptic number.

42865521333122 is a deficient number, since it is larger than the sum of its proper divisors (21444134871034).

42865521333122 is a wasteful number, since it uses less digits than its factorization.

42865521333122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791401492.

The product of its digits is 2073600, while the sum is 47.

Adding to 42865521333122 its reverse (22133312556824), we get a palindrome (64998833889946).

The spelling of 42865521333122 in words is "forty-two trillion, eight hundred sixty-five billion, five hundred twenty-one million, three hundred thirty-three thousand, one hundred twenty-two".