3111220112 has 120 divisors (see below), whose sum is σ = 8238347712. Its totient is φ = 1118880000.

The previous prime is 3111220103. The next prime is 3111220117. The reversal of 3111220112 is 2110221113.

3111220112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (3111220117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98237 + ... + 125987.

Almost surely, 2^3111220112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3111220112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4119173856).

3111220112 is an abundant number, since it is smaller than the sum of its proper divisors (5127127600).

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

3111220112 is a wasteful number, since it uses less digits than its factorization.

3111220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27797 (or 27784 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 3111220112 is about 55778.3122010697. The cubic root of 3111220112 is about 1459.8567620783.

Adding to 3111220112 its reverse (2110221113), we get a palindrome (5221441225).

The spelling of 3111220112 in words is "three billion, one hundred eleven million, two hundred twenty thousand, one hundred twelve".