221333333123220 has 48 divisors (see below), whose sum is σ = 622393132495680. Its totient is φ = 58768907904256.

The previous prime is 221333333123173. The next prime is 221333333123237. The reversal of 221333333123220 is 22321333333122.

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, 7916056590 + ... + 7916084549.

It is an arithmetic number, because the mean of its divisors is an integer number (12966523593660).

Almost surely, 2^{221333333123220} is an apocalyptic number.

221333333123220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221333333123220 is an abundant number, since it is smaller than the sum of its proper divisors (401059799372460).

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

221333333123220 is a wasteful number, since it uses less digits than its factorization.

221333333123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15832141384 (or 15832141382 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 33.

Adding to 221333333123220 its reverse (22321333333122), we get a palindrome (243654666456342).

The spelling of 221333333123220 in words is "two hundred twenty-one trillion, three hundred thirty-three billion, three hundred thirty-three million, one hundred twenty-three thousand, two hundred twenty".