1333011213221 has 4 divisors (see below), whose sum is σ = 1333198730700. Its totient is φ = 1332823695744.

The previous prime is 1333011213203. The next prime is 1333011213263. The reversal of 1333011213221 is 1223121103331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 880500722500 + 452510490721 = 938350^2 + 672689^2 .

It is a cyclic number.

It is not a de Polignac number, because 1333011213221 - 2²⁶ = 1332944104357 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 (1333011413221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93748076 + ... + 93762293.

It is an arithmetic number, because the mean of its divisors is an integer number (333299682675).

Almost surely, 2^{1333011213221} is an apocalyptic number.

It is an amenable number.

1333011213221 is a deficient number, since it is larger than the sum of its proper divisors (187517479).

1333011213221 is an equidigital number, since it uses as much as digits as its factorization.

1333011213221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187517478.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1333011213221 its reverse (1223121103331), we get a palindrome (2556132316552).

The spelling of 1333011213221 in words is "one trillion, three hundred thirty-three billion, eleven million, two hundred thirteen thousand, two hundred twenty-one".