221320113330320 has 40 divisors (see below), whose sum is σ = 514752842060736. Its totient is φ = 88496461922688.

The previous prime is 221320113330319. The next prime is 221320113330331. The reversal of 221320113330320 is 23033311023122.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×221320113330320² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221320113330320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493265132 + ... + 493713611.

Almost surely, 2^{221320113330320} is an apocalyptic number.

221320113330320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221320113330320 is an abundant number, since it is smaller than the sum of its proper divisors (293432728730416).

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

221320113330320 is a wasteful number, since it uses less digits than its factorization.

221320113330320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986981559 (or 986981553 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 221320113330320 its reverse (23033311023122), we get a palindrome (244353424353442).

The spelling of 221320113330320 in words is "two hundred twenty-one trillion, three hundred twenty billion, one hundred thirteen million, three hundred thirty thousand, three hundred twenty".