221541216230068 has 48 divisors (see below), whose sum is σ = 453398389678080. Its totient is φ = 92735787370464.

The previous prime is 221541216230063. The next prime is 221541216230119. The reversal of 221541216230068 is 860032612145122.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221541216230063) 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, 44626053 + ... + 49341331.

It is an arithmetic number, because the mean of its divisors is an integer number (9445799784960).

Almost surely, 2^{221541216230068} is an apocalyptic number.

221541216230068 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

221541216230068 is an abundant number, since it is smaller than the sum of its proper divisors (231857173448012).

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

221541216230068 is a wasteful number, since it uses less digits than its factorization.

221541216230068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754356 (or 4754354 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 43.

The spelling of 221541216230068 in words is "two hundred twenty-one trillion, five hundred forty-one billion, two hundred sixteen million, two hundred thirty thousand, sixty-eight".