3121221411011 has 4 divisors (see below), whose sum is σ = 3404968812024. Its totient is φ = 2837474010000.

The previous prime is 3121221410999. The next prime is 3121221411013. The reversal of 3121221411011 is 1101141221213.

It is a happy number.

3121221411011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3121221411011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121221411013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141873700490 + ... + 141873700511.

It is an arithmetic number, because the mean of its divisors is an integer number (851242203006).

Almost surely, 2^{3121221411011} is an apocalyptic number.

3121221411011 is a deficient number, since it is larger than the sum of its proper divisors (283747401013).

3121221411011 is a wasteful number, since it uses less digits than its factorization.

3121221411011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283747401012.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 3121221411011 its reverse (1101141221213), we get a palindrome (4222362632224).

The spelling of 3121221411011 in words is "three trillion, one hundred twenty-one billion, two hundred twenty-one million, four hundred eleven thousand, eleven".