213230302220 has 24 divisors (see below), whose sum is σ = 482228530224. Its totient is φ = 78731188416.

The previous prime is 213230302151. The next prime is 213230302331. The reversal of 213230302220 is 22203032312.

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

It is a junction number, because it is equal to n+sod(n) for n = 213230302192 and 213230302201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410058014 + ... + 410058533.

It is an arithmetic number, because the mean of its divisors is an integer number (20092855426).

Almost surely, 2^213230302220 is an apocalyptic number.

213230302220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213230302220 is an abundant number, since it is smaller than the sum of its proper divisors (268998228004).

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

213230302220 is a wasteful number, since it uses less digits than its factorization.

213230302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820116569 (or 820116567 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 213230302220 its reverse (22203032312), we get a palindrome (235433334532).

The spelling of 213230302220 in words is "two hundred thirteen billion, two hundred thirty million, three hundred two thousand, two hundred twenty".