16217012 has 12 divisors (see below), whose sum is σ = 32434080. Its totient is φ = 6950136.

The previous prime is 16217009. The next prime is 16217029. The reversal of 16217012 is 21071261.

16217012 is an admirable number.

It is a congruent number.

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, 289562 + ... + 289617.

It is an arithmetic number, because the mean of its divisors is an integer number (2702840).

Almost surely, 2^16217012 is an apocalyptic number.

It is an amenable number.

16217012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16217012 is a wasteful number, since it uses less digits than its factorization.

16217012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579190 (or 579188 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 16217012 is about 4027.0351376664. The cubic root of 16217012 is about 253.1183394478.

Adding to 16217012 its reverse (21071261), we get a palindrome (37288273).

The spelling of 16217012 in words is "sixteen million, two hundred seventeen thousand, twelve".