213225002240 has 144 divisors (see below), whose sum is σ = 526874194560. Its totient is φ = 82637660160.

The previous prime is 213225002239. The next prime is 213225002293. The reversal of 213225002240 is 42200522312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5210981 + ... + 5251739.

Almost surely, 2^213225002240 is an apocalyptic number.

213225002240 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 213225002240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263437097280).

213225002240 is an abundant number, since it is smaller than the sum of its proper divisors (313649192320).

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

213225002240 is an equidigital number, since it uses as much as digits as its factorization.

213225002240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40908 (or 40894 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 213225002240 its reverse (42200522312), we get a palindrome (255425524552).

The spelling of 213225002240 in words is "two hundred thirteen billion, two hundred twenty-five million, two thousand, two hundred forty".