213422231140 has 24 divisors (see below), whose sum is σ = 448556222520. Its totient is φ = 85298504448.

The previous prime is 213422231101. The next prime is 213422231159. The reversal of 213422231140 is 41132224312.

213422231140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5710522624 + 207711708516 = 75568^2 + 455754^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4374385 + ... + 4422904.

It is an arithmetic number, because the mean of its divisors is an integer number (18689842605).

Almost surely, 2^213422231140 is an apocalyptic number.

213422231140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213422231140 is an abundant number, since it is smaller than the sum of its proper divisors (235133991380).

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

213422231140 is a wasteful number, since it uses less digits than its factorization.

213422231140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8798511 (or 8798509 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 213422231140 its reverse (41132224312), we get a palindrome (254554455452).

The spelling of 213422231140 in words is "two hundred thirteen billion, four hundred twenty-two million, two hundred thirty-one thousand, one hundred forty".