3011221311021 has 96 divisors (see below), whose sum is σ = 5919632409600. Its totient is φ = 1481940593280.

The previous prime is 3011221310987. The next prime is 3011221311079. The reversal of 3011221311021 is 1201131221103.

3011221311021 is a `hidden beast` number, since 301 + 12 + 21 + 311 + 0 + 21 = 666.

It is not a de Polignac number, because 3011221311021 - 2⁹ = 3011221310509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3011221310985 and 3011221311003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3011221311121) 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 95 ways as a sum of consecutive naturals, for example, 3879576 + ... + 4590593.

It is an arithmetic number, because the mean of its divisors is an integer number (61662837600).

Almost surely, 2^{3011221311021} is an apocalyptic number.

It is an amenable number.

3011221311021 is a deficient number, since it is larger than the sum of its proper divisors (2908411098579).

3011221311021 is a wasteful number, since it uses less digits than its factorization.

3011221311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470221 (or 8470209 counting only the distinct ones).

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

Adding to 3011221311021 its reverse (1201131221103), we get a palindrome (4212352532124).

The spelling of 3011221311021 in words is "three trillion, eleven billion, two hundred twenty-one million, three hundred eleven thousand, twenty-one".