3011320001221 has 12 divisors (see below), whose sum is σ = 3547305405120. Its totient is φ = 2548458876600.

The previous prime is 3011320001197. The next prime is 3011320001387. The reversal of 3011320001221 is 1221000231103.

It is not a de Polignac number, because 3011320001221 - 2⁷ = 3011320001093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3011320001195 and 3011320001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3011320001821) 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 11 ways as a sum of consecutive naturals, for example, 388955055 + ... + 388962796.

It is an arithmetic number, because the mean of its divisors is an integer number (295608783760).

Almost surely, 2^{3011320001221} is an apocalyptic number.

It is an amenable number.

3011320001221 is a deficient number, since it is larger than the sum of its proper divisors (535985403899).

3011320001221 is an equidigital number, since it uses as much as digits as its factorization.

3011320001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777917944 (or 777917937 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 3011320001221 its reverse (1221000231103), we get a palindrome (4232320232324).

The spelling of 3011320001221 in words is "three trillion, eleven billion, three hundred twenty million, one thousand, two hundred twenty-one".