42243122134225 has 12 divisors (see below), whose sum is σ = 52512098569740. Its totient is φ = 33710222144000.

The previous prime is 42243122134201. The next prime is 42243122134307. The reversal of 42243122134225 is 52243122134224.

It can be written as a sum of positive squares in 6 ways, for example, as 3238700530321 + 39004421603904 = 1799639^2 + 6245352^2 .

It is not a de Polignac number, because 42243122134225 - 2⁵ = 42243122134193 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2106878860 + ... + 2106898909.

It is an arithmetic number, because the mean of its divisors is an integer number (4376008214145).

Almost surely, 2^{42243122134225} is an apocalyptic number.

It is an amenable number.

42243122134225 is a deficient number, since it is larger than the sum of its proper divisors (10268976435515).

42243122134225 is a wasteful number, since it uses less digits than its factorization.

42243122134225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4213778180 (or 4213778175 counting only the distinct ones).

The product of its digits is 184320, while the sum is 37.

Adding to 42243122134225 its reverse (52243122134224), we get a palindrome (94486244268449).

Subtracting 42243122134225 from its reverse (52243122134224), we obtain a palindrome (9999999999999).

The spelling of 42243122134225 in words is "forty-two trillion, two hundred forty-three billion, one hundred twenty-two million, one hundred thirty-four thousand, two hundred twenty-five".