221761012173060 has 48 divisors (see below), whose sum is σ = 620971343596800. Its totient is φ = 59132411864064.

The previous prime is 221761012173059. The next prime is 221761012173089. The reversal of 221761012173060 is 60371210167122.

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, 119636620 + ... + 121476099.

It is an arithmetic number, because the mean of its divisors is an integer number (12936902991600).

Almost surely, 2^{221761012173060} is an apocalyptic number.

221761012173060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221761012173060 is an abundant number, since it is smaller than the sum of its proper divisors (399210331423740).

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

221761012173060 is a wasteful number, since it uses less digits than its factorization.

221761012173060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241128060 (or 241128058 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The spelling of 221761012173060 in words is "two hundred twenty-one trillion, seven hundred sixty-one billion, twelve million, one hundred seventy-three thousand, sixty".