1221011200301 has 8 divisors (see below), whose sum is σ = 1306163590200. Its totient is φ = 1137339721728.

The previous prime is 1221011200289. The next prime is 1221011200411. The reversal of 1221011200301 is 1030021101221.

It can be written as a sum of positive squares in 4 ways, for example, as 35310168100 + 1185701032201 = 187910^2 + 1088899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1221011200301 - 2¹⁰ = 1221011199277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221011200501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370226126 + ... + 370229423.

It is an arithmetic number, because the mean of its divisors is an integer number (163270448775).

Almost surely, 2^{1221011200301} is an apocalyptic number.

It is an amenable number.

1221011200301 is a deficient number, since it is larger than the sum of its proper divisors (85152389899).

1221011200301 is an equidigital number, since it uses as much as digits as its factorization.

1221011200301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740455663.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1221011200301 its reverse (1030021101221), we get a palindrome (2251032301522).

The spelling of 1221011200301 in words is "one trillion, two hundred twenty-one billion, eleven million, two hundred thousand, three hundred one".