221323300343420 has 96 divisors (see below), whose sum is σ = 538296244871616. Its totient is φ = 75543936307200.

The previous prime is 221323300343417. The next prime is 221323300343501. The reversal of 221323300343420 is 24343003323122.

It is a happy number.

221323300343420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77931191 + ... + 80721230.

It is an arithmetic number, because the mean of its divisors is an integer number (5607252550746).

Almost surely, 2^{221323300343420} is an apocalyptic number.

221323300343420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221323300343420 is an abundant number, since it is smaller than the sum of its proper divisors (316972944528196).

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

221323300343420 is a wasteful number, since it uses less digits than its factorization.

221323300343420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158652831 (or 158652829 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 221323300343420 its reverse (24343003323122), we get a palindrome (245666303666542).

The spelling of 221323300343420 in words is "two hundred twenty-one trillion, three hundred twenty-three billion, three hundred million, three hundred forty-three thousand, four hundred twenty".