1200321422000 has 80 divisors (see below), whose sum is σ = 2957139293472. Its totient is φ = 471069497600.

The previous prime is 1200321421967. The next prime is 1200321422009. The reversal of 1200321422000 is 2241230021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1200321422000² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1200321422000.

It is not an unprimeable number, because it can be changed into a prime (1200321422009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5555894 + ... + 5767893.

Almost surely, 2^{1200321422000} is an apocalyptic number.

1200321422000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200321422000 is an abundant number, since it is smaller than the sum of its proper divisors (1756817871472).

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

1200321422000 is a wasteful number, since it uses less digits than its factorization.

1200321422000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11323863 (or 11323847 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 1200321422000 its reverse (2241230021), we get a palindrome (1202562652021).

The spelling of 1200321422000 in words is "one trillion, two hundred billion, three hundred twenty-one million, four hundred twenty-two thousand".