221341303143128 has 64 divisors (see below), whose sum is σ = 476277301624320. Its totient is φ = 94465791360000.

The previous prime is 221341303143127. The next prime is 221341303143151. The reversal of 221341303143128 is 821341303143122.

It is a junction number, because it is equal to n+sod(n) for n = 221341303143091 and 221341303143100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221341303143127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77636648 + ... + 80437128.

It is an arithmetic number, because the mean of its divisors is an integer number (7441832837880).

Almost surely, 2^{221341303143128} is an apocalyptic number.

221341303143128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

221341303143128 is an abundant number, since it is smaller than the sum of its proper divisors (254935998481192).

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

221341303143128 is a wasteful number, since it uses less digits than its factorization.

221341303143128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2806368 (or 2806364 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 221341303143128 in words is "two hundred twenty-one trillion, three hundred forty-one billion, three hundred three million, one hundred forty-three thousand, one hundred twenty-eight".