1001200221332 has 6 divisors (see below), whose sum is σ = 1752100387338. Its totient is φ = 500600110664.

The previous prime is 1001200221331. The next prime is 1001200221341. The reversal of 1001200221332 is 2331220021001.

It can be written as a sum of positive squares in only one way, i.e., 903628952836 + 97571268496 = 950594^2 + 312364^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1001200221332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001200221331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125150027663 + ... + 125150027670.

It is an arithmetic number, because the mean of its divisors is an integer number (292016731223).

Almost surely, 2^{1001200221332} is an apocalyptic number.

It is an amenable number.

1001200221332 is a deficient number, since it is larger than the sum of its proper divisors (750900166006).

1001200221332 is a wasteful number, since it uses less digits than its factorization.

1001200221332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250300055337 (or 250300055335 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1001200221332 its reverse (2331220021001), we get a palindrome (3332420242333).

The spelling of 1001200221332 in words is "one trillion, one billion, two hundred million, two hundred twenty-one thousand, three hundred thirty-two".