331232222220 has 24 divisors (see below), whose sum is σ = 927450222384. Its totient is φ = 88328592576.

The previous prime is 331232222203. The next prime is 331232222227. The reversal of 331232222220 is 22222232133.

It is not an unprimeable number, because it can be changed into a prime (331232222227) 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, 2760268459 + ... + 2760268578.

It is an arithmetic number, because the mean of its divisors is an integer number (38643759266).

Almost surely, 2^331232222220 is an apocalyptic number.

331232222220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331232222220 is an abundant number, since it is smaller than the sum of its proper divisors (596218000164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331232222220 is a wasteful number, since it uses less digits than its factorization.

331232222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5520537049 (or 5520537047 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 331232222220 its reverse (22222232133), we get a palindrome (353454454353).

The spelling of 331232222220 in words is "three hundred thirty-one billion, two hundred thirty-two million, two hundred twenty-two thousand, two hundred twenty".