221310213332320 has 48 divisors (see below), whose sum is σ = 597537576000288. Its totient is φ = 75877787427840.

The previous prime is 221310213332317. The next prime is 221310213332363. The reversal of 221310213332320 is 23233312013122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98799201261 + ... + 98799203500.

It is an arithmetic number, because the mean of its divisors is an integer number (12448699500006).

Almost surely, 2^{221310213332320} is an apocalyptic number.

221310213332320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221310213332320 is an abundant number, since it is smaller than the sum of its proper divisors (376227362667968).

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

221310213332320 is a wasteful number, since it uses less digits than its factorization.

221310213332320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197598404783 (or 197598404775 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 221310213332320 its reverse (23233312013122), we get a palindrome (244543525345442).

The spelling of 221310213332320 in words is "two hundred twenty-one trillion, three hundred ten billion, two hundred thirteen million, three hundred thirty-two thousand, three hundred twenty".