1222550135200 has 36 divisors (see below), whose sum is σ = 2984550519510. Its totient is φ = 489020053760.

The previous prime is 1222550135173. The next prime is 1222550135201. The reversal of 1222550135200 is 25310552221.

It can be written as a sum of positive squares in 3 ways, for example, as 804774056464 + 417776078736 = 897092^2 + 646356^2 .

It is not an unprimeable number, because it can be changed into a prime (1222550135201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 764093035 + ... + 764094634.

Almost surely, 2^{1222550135200} is an apocalyptic number.

1222550135200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222550135200 is an abundant number, since it is smaller than the sum of its proper divisors (1762000384310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222550135200 is a wasteful number, since it uses less digits than its factorization.

1222550135200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528187689 (or 1528187676 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 1222550135200 its reverse (25310552221), we get a palindrome (1247860687421).

The spelling of 1222550135200 in words is "one trillion, two hundred twenty-two billion, five hundred fifty million, one hundred thirty-five thousand, two hundred".