221544560012144 has 40 divisors (see below), whose sum is σ = 435719663094240. Its totient is φ = 109103868518400.

The previous prime is 221544560012119. The next prime is 221544560012231. The reversal of 221544560012144 is 441210065445122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95494817 + ... + 97787264.

It is an arithmetic number, because the mean of its divisors is an integer number (10892991577356).

Almost surely, 2^{221544560012144} is an apocalyptic number.

It is an amenable number.

221544560012144 is a deficient number, since it is larger than the sum of its proper divisors (214175103082096).

221544560012144 is a wasteful number, since it uses less digits than its factorization.

221544560012144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193283169 (or 193283163 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 41.

The spelling of 221544560012144 in words is "two hundred twenty-one trillion, five hundred forty-four billion, five hundred sixty million, twelve thousand, one hundred forty-four".