221314012 has 12 divisors (see below), whose sum is σ = 388011400. Its totient is φ = 110453616.

The previous prime is 221313977. The next prime is 221314019. The reversal of 221314012 is 210413122.

It is a super-2 number, since 2×221314012² = 97959783815072288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221314019) by changing a digit.

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, 48387 + ... + 52762.

Almost surely, 2^221314012 is an apocalyptic number.

It is an amenable number.

221314012 is a deficient number, since it is larger than the sum of its proper divisors (166697388).

221314012 is a wasteful number, since it uses less digits than its factorization.

221314012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101700 (or 101698 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 221314012 is about 14876.6263648718. The cubic root of 221314012 is about 604.8805738361.

Adding to 221314012 its reverse (210413122), we get a palindrome (431727134).

The spelling of 221314012 in words is "two hundred twenty-one million, three hundred fourteen thousand, twelve".