211628012 has 24 divisors (see below), whose sum is σ = 381060960. Its totient is φ = 102764160.

The previous prime is 211627967. The next prime is 211628057. The reversal of 211628012 is 210826112.

It is an interprime number because it is at equal distance from previous prime (211627967) and next prime (211628057).

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 7 ways as a sum of consecutive naturals, for example, 111689 + ... + 113567.

It is an arithmetic number, because the mean of its divisors is an integer number (15877540).

Almost surely, 2^211628012 is an apocalyptic number.

It is an amenable number.

211628012 is a deficient number, since it is larger than the sum of its proper divisors (169432948).

211628012 is a wasteful number, since it uses less digits than its factorization.

211628012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681 (or 2679 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 211628012 is about 14547.4400497132. The cubic root of 211628012 is about 595.9242392778.

The spelling of 211628012 in words is "two hundred eleven million, six hundred twenty-eight thousand, twelve".