3111132031221 has 8 divisors (see below), whose sum is σ = 4151223935424. Its totient is φ = 2072564073920.

The previous prime is 3111132031169. The next prime is 3111132031237. The reversal of 3111132031221 is 1221302311113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3111132031221 - 2¹³ = 3111132023029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111132031121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380981961 + ... + 380990126.

It is an arithmetic number, because the mean of its divisors is an integer number (518902991928).

Almost surely, 2^{3111132031221} is an apocalyptic number.

It is an amenable number.

3111132031221 is a deficient number, since it is larger than the sum of its proper divisors (1040091904203).

3111132031221 is a wasteful number, since it uses less digits than its factorization.

3111132031221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761973451.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 3111132031221 its reverse (1221302311113), we get a palindrome (4332434342334).

The spelling of 3111132031221 in words is "three trillion, one hundred eleven billion, one hundred thirty-two million, thirty-one thousand, two hundred twenty-one".