1322200121000 has 64 divisors (see below), whose sum is σ = 3375216336960. Its totient is φ = 480800040000.

The previous prime is 1322200120993. The next prime is 1322200121003. The reversal of 1322200121000 is 1210022231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1322200121003) 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, 60089006 + ... + 60111005.

It is an arithmetic number, because the mean of its divisors is an integer number (52737755265).

Almost surely, 2^{1322200121000} is an apocalyptic number.

1322200121000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322200121000 is an abundant number, since it is smaller than the sum of its proper divisors (2053016215960).

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

1322200121000 is a wasteful number, since it uses less digits than its factorization.

1322200121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120200043 (or 120200029 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1322200121000 its reverse (1210022231), we get a palindrome (1323410143231).

The spelling of 1322200121000 in words is "one trillion, three hundred twenty-two billion, two hundred million, one hundred twenty-one thousand".