2187011112 has 192 divisors, whose sum is σ = 6814920000. Its totient is φ = 579363840.

The previous prime is 2187011107. The next prime is 2187011117. The reversal of 2187011112 is 2111107812.

It is an interprime number because it is at equal distance from previous prime (2187011107) and next prime (2187011117).

It is a super-2 number, since 2×2187011112² = 9566035208022953088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (2187011117) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 715764 + ... + 718812.

It is an arithmetic number, because the mean of its divisors is an integer number (35494375).

Almost surely, 2^2187011112 is an apocalyptic number.

2187011112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2187011112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3407460000).

2187011112 is an abundant number, since it is smaller than the sum of its proper divisors (4627908888).

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

2187011112 is a wasteful number, since it uses less digits than its factorization.

2187011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3112 (or 3097 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 24.

The square root of 2187011112 is about 46765.4906100642. The cubic root of 2187011112 is about 1298.0268116649.

Adding to 2187011112 its reverse (2111107812), we get a palindrome (4298118924).

The spelling of 2187011112 in words is "two billion, one hundred eighty-seven million, eleven thousand, one hundred twelve".