221330233232120 has 64 divisors (see below), whose sum is σ = 498090508070400. Its totient is φ = 88514764968960.

The previous prime is 221330233232117. The next prime is 221330233232177. The reversal of 221330233232120 is 21232332033122.

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, 5495181422 + ... + 5495221698.

It is an arithmetic number, because the mean of its divisors is an integer number (7782664188600).

Almost surely, 2^{221330233232120} is an apocalyptic number.

221330233232120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221330233232120 is an abundant number, since it is smaller than the sum of its proper divisors (276760274838280).

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

221330233232120 is a wasteful number, since it uses less digits than its factorization.

221330233232120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63768 (or 63764 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 221330233232120 its reverse (21232332033122), we get a palindrome (242562565265242).

The spelling of 221330233232120 in words is "two hundred twenty-one trillion, three hundred thirty billion, two hundred thirty-three million, two hundred thirty-two thousand, one hundred twenty".