213120221230 has 24 divisors (see below), whose sum is σ = 446247647928. Its totient is φ = 73069789968.

The previous prime is 213120221221. The next prime is 213120221233. The reversal of 213120221230 is 32122021312.

213120221230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213120221198 and 213120221207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213120221233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217469124 + ... + 217470103.

It is an arithmetic number, because the mean of its divisors is an integer number (18593651997).

Almost surely, 2^213120221230 is an apocalyptic number.

213120221230 is an abundant number, since it is smaller than the sum of its proper divisors (233127426698).

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

213120221230 is a wasteful number, since it uses less digits than its factorization.

213120221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434939248 (or 434939241 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 213120221230 its reverse (32122021312), we get a palindrome (245242242542).

The spelling of 213120221230 in words is "two hundred thirteen billion, one hundred twenty million, two hundred twenty-one thousand, two hundred thirty".