It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
Almost surely, 242901222210925 is an apocalyptic number.
It is an amenable number.
42901222210925 is a wasteful number, since it uses less digits than its factorization.
42901222210925 is an evil number, because the sum of its binary digits is even.
Subtracting 42901222210925 from its reverse (52901222210924), we obtain a palindrome (9999999999999).
The spelling of 42901222210925 in words is "forty-two trillion, nine hundred one billion, two hundred twenty-two million, two hundred ten thousand, nine hundred twenty-five".