331201012220 has 48 divisors (see below), whose sum is σ = 773185905408. Its totient is φ = 118344775680.

The previous prime is 331201012201. The next prime is 331201012223. The reversal of 331201012220 is 22210102133.

It is a super-2 number, since 2×331201012220² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331201012223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20537909 + ... + 20554028.

It is an arithmetic number, because the mean of its divisors is an integer number (16108039696).

Almost surely, 2^331201012220 is an apocalyptic number.

It is an amenable number.

331201012220 is an abundant number, since it is smaller than the sum of its proper divisors (441984893188).

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

331201012220 is a wasteful number, since it uses less digits than its factorization.

331201012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41091990 (or 41091988 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 331201012220 its reverse (22210102133), we get a palindrome (353411114353).

The spelling of 331201012220 in words is "three hundred thirty-one billion, two hundred one million, twelve thousand, two hundred twenty".