3112011112220 has 12 divisors (see below), whose sum is σ = 6535223335704. Its totient is φ = 1244804444880.

The previous prime is 3112011112207. The next prime is 3112011112229. The reversal of 3112011112220 is 222111102113.

It is a happy number.

It is a super-2 number, since 2×3112011112220² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112011112229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77800277786 + ... + 77800277825.

It is an arithmetic number, because the mean of its divisors is an integer number (544601944642).

Almost surely, 2^{3112011112220} is an apocalyptic number.

It is an amenable number.

3112011112220 is an abundant number, since it is smaller than the sum of its proper divisors (3423212223484).

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

3112011112220 is a wasteful number, since it uses less digits than its factorization.

3112011112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155600555620 (or 155600555618 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 3112011112220 its reverse (222111102113), we get a palindrome (3334122214333).

The spelling of 3112011112220 in words is "three trillion, one hundred twelve billion, eleven million, one hundred twelve thousand, two hundred twenty".