Adding to 1240112221134 its reverse (4311222110421), we get a palindrome (5551334331555).
It is a congruent number.
It is an unprimeable number.
Almost surely, 21240112221134 is an apocalyptic number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1240112221134 is a wasteful number, since it uses less digits than its factorization.
1240112221134 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 76789.
The spelling of 1240112221134 in words is "one trillion, two hundred forty billion, one hundred twelve million, two hundred twenty-one thousand, one hundred thirty-four".