It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 122215560.
It is an unprimeable number.
Almost surely, 2122215560 is an apocalyptic number.
122215560 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.
122215560 is a wasteful number, since it uses less digits than its factorization.
122215560 is an evil number, because the sum of its binary digits is even.
The square root of 122215560 is about 11055.1146534082. The cubic root of 122215560 is about 496.2595004389.
Adding to 122215560 its reverse (65512221), we get a palindrome (187727781).
The spelling of 122215560 in words is "one hundred twenty-two million, two hundred fifteen thousand, five hundred sixty".