2251112140 has 24 divisors (see below), whose sum is σ = 4728295152. Its totient is φ = 900262080.

The previous prime is 2251112099. The next prime is 2251112147. The reversal of 2251112140 is 412111522.

2251112140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2251112147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135910 + ... + 151570.

It is an arithmetic number, because the mean of its divisors is an integer number (197012298).

Almost surely, 2^2251112140 is an apocalyptic number.

2251112140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2251112140 is an abundant number, since it is smaller than the sum of its proper divisors (2477183012).

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

2251112140 is a wasteful number, since it uses less digits than its factorization.

2251112140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22857 (or 22855 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 2251112140 is about 47445.8864391846. The cubic root of 2251112140 is about 1310.5865601598.

Adding to 2251112140 its reverse (412111522), we get a palindrome (2663223662).

The spelling of 2251112140 in words is "two billion, two hundred fifty-one million, one hundred twelve thousand, one hundred forty".