213322223240 has 320 divisors, whose sum is σ = 583332226560. Its totient is φ = 70128737280.

The previous prime is 213322223203. The next prime is 213322223251. The reversal of 213322223240 is 42322223312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 407881619 + ... + 407882141.

It is an arithmetic number, because the mean of its divisors is an integer number (1822913208).

Almost surely, 2^213322223240 is an apocalyptic number.

213322223240 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 213322223240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291666113280).

213322223240 is an abundant number, since it is smaller than the sum of its proper divisors (370010003320).

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

213322223240 is a wasteful number, since it uses less digits than its factorization.

213322223240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 213322223240 its reverse (42322223312), we get a palindrome (255644446552).

The spelling of 213322223240 in words is "two hundred thirteen billion, three hundred twenty-two million, two hundred twenty-three thousand, two hundred forty".