2132223140 has 24 divisors (see below), whose sum is σ = 4482407160. Its totient is φ = 851986688.

The previous prime is 2132223139. The next prime is 2132223143. The reversal of 2132223140 is 413222312.

It can be written as a sum of positive squares in 4 ways, for example, as 24127744 + 2108095396 = 4912^2 + 45914^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (2132223143) 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, 36875 + ... + 74994.

It is an arithmetic number, because the mean of its divisors is an integer number (186766965).

Almost surely, 2^2132223140 is an apocalyptic number.

2132223140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2132223140 is an abundant number, since it is smaller than the sum of its proper divisors (2350184020).

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

2132223140 is a wasteful number, since it uses less digits than its factorization.

2132223140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112831 (or 112829 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2132223140 is about 46176.0017758142. The cubic root of 2132223140 is about 1287.0958324182.

Adding to 2132223140 its reverse (413222312), we get a palindrome (2545445452).

The spelling of 2132223140 in words is "two billion, one hundred thirty-two million, two hundred twenty-three thousand, one hundred forty".