2221100112 has 80 divisors (see below), whose sum is σ = 7153684992. Its totient is φ = 576908160.

The previous prime is 2221100081. The next prime is 2221100129. The reversal of 2221100112 is 2110011222.

It is a super-3 number, since 3×2221100112³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296778 + ... + 304169.

Almost surely, 2^2221100112 is an apocalyptic number.

2221100112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2221100112 is an abundant number, since it is smaller than the sum of its proper divisors (4932584880).

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

2221100112 is a wasteful number, since it uses less digits than its factorization.

2221100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600976 (or 600970 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2221100112 is about 47128.5488000639. The cubic root of 2221100112 is about 1304.7361977593.

Adding to 2221100112 its reverse (2110011222), we get a palindrome (4331111334).

It can be divided in two parts, 22 and 21100112, that multiplied together give a palindrome (464202464).

The spelling of 2221100112 in words is "two billion, two hundred twenty-one million, one hundred thousand, one hundred twelve".