221014412 has 12 divisors (see below), whose sum is σ = 391121640. Its totient is φ = 109265376.

The previous prime is 221014397. The next prime is 221014421. The reversal of 221014412 is 214410122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310058 + ... + 310769.

It is an arithmetic number, because the mean of its divisors is an integer number (32593470).

Almost surely, 2^221014412 is an apocalyptic number.

It is an amenable number.

221014412 is a deficient number, since it is larger than the sum of its proper divisors (170107228).

221014412 is a wasteful number, since it uses less digits than its factorization.

221014412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620920 (or 620918 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 221014412 is about 14866.5534674315. The cubic root of 221014412 is about 604.6075017197.

Adding to 221014412 its reverse (214410122), we get a palindrome (435424534).

The spelling of 221014412 in words is "two hundred twenty-one million, fourteen thousand, four hundred twelve".