221150012 has 12 divisors (see below), whose sum is σ = 387356256. Its totient is φ = 110476800.

The previous prime is 221149967. The next prime is 221150021. The reversal of 221150012 is 210051122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19364 + ... + 28587.

It is an arithmetic number, because the mean of its divisors is an integer number (32279688).

Almost surely, 2^221150012 is an apocalyptic number.

It is an amenable number.

221150012 is a deficient number, since it is larger than the sum of its proper divisors (166206244).

221150012 is a wasteful number, since it uses less digits than its factorization.

221150012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49108 (or 49106 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 221150012 is about 14871.1133409708. The cubic root of 221150012 is about 604.7311256580.

The spelling of 221150012 in words is "two hundred twenty-one million, one hundred fifty thousand, twelve".