1222313221200 has 180 divisors, whose sum is σ = 4132402065888. Its totient is φ = 308794809600.

The previous prime is 1222313221187. The next prime is 1222313221229. The reversal of 1222313221200 is 21223132221.

It is a super-2 number, since 2×1222313221200² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 977596 + ... + 1843995.

Almost surely, 2^{1222313221200} is an apocalyptic number.

1222313221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222313221200 is an abundant number, since it is smaller than the sum of its proper divisors (2910088844688).

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

1222313221200 is a wasteful number, since it uses less digits than its factorization.

1222313221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821650 (or 2821620 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1222313221200 its reverse (21223132221), we get a palindrome (1243536353421).

The spelling of 1222313221200 in words is "one trillion, two hundred twenty-two billion, three hundred thirteen million, two hundred twenty-one thousand, two hundred".