Adding to 1022021040 its reverse (401202201), we get a palindrome (1423223241).
It is a tau number, because it is divible by the number of its divisors (80).
It is an unprimeable number.
Almost surely, 21022021040 is an apocalyptic number.
1022021040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1022021040 is a wasteful number, since it uses less digits than its factorization.
1022021040 is an odious number, because the sum of its binary digits is odd.
The square root of 1022021040 is about 31969.0637961139. The cubic root of 1022021040 is about 1007.2871156256.
The spelling of 1022021040 in words is "one billion, twenty-two million, twenty-one thousand, forty".