210223320142240 has 24 divisors (see below), whose sum is σ = 496652593836420. Its totient is φ = 84089328056832.

The previous prime is 210223320142229. The next prime is 210223320142243. The reversal of 210223320142240 is 42241023322012.

It can be written as a sum of positive squares in 2 ways, for example, as 207396980848656 + 2826339293584 = 14401284^2 + 1681172^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210223320142199 and 210223320142208.

It is not an unprimeable number, because it can be changed into a prime (210223320142243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656947875285 + ... + 656947875604.

Almost surely, 2^{210223320142240} is an apocalyptic number.

210223320142240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210223320142240 is an abundant number, since it is smaller than the sum of its proper divisors (286429273694180).

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

210223320142240 is a wasteful number, since it uses less digits than its factorization.

210223320142240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313895750904 (or 1313895750896 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 210223320142240 its reverse (42241023322012), we get a palindrome (252464343464252).

The spelling of 210223320142240 in words is "two hundred ten trillion, two hundred twenty-three billion, three hundred twenty million, one hundred forty-two thousand, two hundred forty".