1322202001220 has 12 divisors (see below), whose sum is σ = 2776624202604. Its totient is φ = 528880800480.

The previous prime is 1322202001193. The next prime is 1322202001271. The reversal of 1322202001220 is 221002022231.

It can be written as a sum of positive squares in 2 ways, for example, as 1051953819904 + 270248181316 = 1025648^2 + 519854^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33055050011 + ... + 33055050050.

It is an arithmetic number, because the mean of its divisors is an integer number (231385350217).

Almost surely, 2^{1322202001220} is an apocalyptic number.

1322202001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322202001220 is an abundant number, since it is smaller than the sum of its proper divisors (1454422201384).

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

1322202001220 is a wasteful number, since it uses less digits than its factorization.

1322202001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66110100070 (or 66110100068 counting only the distinct ones).

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

Adding to 1322202001220 its reverse (221002022231), we get a palindrome (1543204023451).

The spelling of 1322202001220 in words is "one trillion, three hundred twenty-two billion, two hundred two million, one thousand, two hundred twenty".