213220030240 has 192 divisors, whose sum is σ = 626035060224. Its totient is φ = 66943991808.

The previous prime is 213220030213. The next prime is 213220030249. The reversal of 213220030240 is 42030022312.

213220030240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (213220030249) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 553149 + ... + 855811.

It is an arithmetic number, because the mean of its divisors is an integer number (3260599272).

Almost surely, 2^213220030240 is an apocalyptic number.

213220030240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213220030240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313017530112).

213220030240 is an abundant number, since it is smaller than the sum of its proper divisors (412815029984).

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

213220030240 is a wasteful number, since it uses less digits than its factorization.

213220030240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302739 (or 302731 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 213220030240 its reverse (42030022312), we get a palindrome (255250052552).

The spelling of 213220030240 in words is "two hundred thirteen billion, two hundred twenty million, thirty thousand, two hundred forty".