1203221311101 has 8 divisors (see below), whose sum is σ = 1782550090560. Its totient is φ = 802147540716.

The previous prime is 1203221311063. The next prime is 1203221311129. The reversal of 1203221311101 is 1011131223021.

1203221311101 is a `hidden beast` number, since 1 + 20 + 322 + 1 + 311 + 10 + 1 = 666.

It is not a de Polignac number, because 1203221311101 - 2¹⁰ = 1203221310077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203221311141) 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, 22281876105 + ... + 22281876158.

It is an arithmetic number, because the mean of its divisors is an integer number (222818761320).

Almost surely, 2^{1203221311101} is an apocalyptic number.

It is an amenable number.

1203221311101 is a deficient number, since it is larger than the sum of its proper divisors (579328779459).

1203221311101 is an equidigital number, since it uses as much as digits as its factorization.

1203221311101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44563752272 (or 44563752266 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1203221311101 its reverse (1011131223021), we get a palindrome (2214352534122).

The spelling of 1203221311101 in words is "one trillion, two hundred three billion, two hundred twenty-one million, three hundred eleven thousand, one hundred one".