1202221120000 has 100 divisors (see below), whose sum is σ = 3001657651146. Its totient is φ = 480888320000.

The previous prime is 1202221119961. The next prime is 1202221120003. The reversal of 1202221120000 is 211222021.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 190249502976 + 1011971617024 = 436176^2 + 1005968^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is not an unprimeable number, because it can be changed into a prime (1202221120003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1558471 + ... + 2198470.

Almost surely, 2^{1202221120000} is an apocalyptic number.

1202221120000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202221120000 is an abundant number, since it is smaller than the sum of its proper divisors (1799436531146).

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

1202221120000 is an frugal number, since it uses more digits than its factorization.

1202221120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756979 (or 3756948 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1202221120000 its reverse (211222021), we get a palindrome (1202432342021).

The spelling of 1202221120000 in words is "one trillion, two hundred two billion, two hundred twenty-one million, one hundred twenty thousand".