331120111101221 has 32 divisors (see below), whose sum is σ = 368769898119168. Its totient is φ = 295246585552320.

The previous prime is 331120111101209. The next prime is 331120111101271. The reversal of 331120111101221 is 122101111021133.

It is a cyclic number.

It is not a de Polignac number, because 331120111101221 - 2⁴⁶ = 260751366923557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331120111101193 and 331120111101202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331120111101271) 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 31 ways as a sum of consecutive naturals, for example, 1322540576 + ... + 1322790918.

It is an arithmetic number, because the mean of its divisors is an integer number (11524059316224).

Almost surely, 2^{331120111101221} is an apocalyptic number.

331120111101221 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

331120111101221 is a deficient number, since it is larger than the sum of its proper divisors (37649787017947).

331120111101221 is a wasteful number, since it uses less digits than its factorization.

331120111101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256401.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 331120111101221 its reverse (122101111021133), we get a palindrome (453221222122354).

The spelling of 331120111101221 in words is "three hundred thirty-one trillion, one hundred twenty billion, one hundred eleven million, one hundred one thousand, two hundred twenty-one".