221650615012 has 12 divisors (see below), whose sum is σ = 390268261936. Its totient is φ = 110145397320.

The previous prime is 221650614931. The next prime is 221650615027. The reversal of 221650615012 is 210516056122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169976814 + ... + 169978117.

Almost surely, 2^221650615012 is an apocalyptic number.

It is an amenable number.

221650615012 is a deficient number, since it is larger than the sum of its proper divisors (168617646924).

221650615012 is a wasteful number, since it uses less digits than its factorization.

221650615012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339955098 (or 339955096 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 221650615012 in words is "two hundred twenty-one billion, six hundred fifty million, six hundred fifteen thousand, twelve".