212000030 has 64 divisors (see below), whose sum is σ = 447104448. Its totient is φ = 71516160.

The previous prime is 212000029. The next prime is 212000057. The reversal of 212000030 is 30000212.

It is a junction number, because it is equal to n+sod(n) for n = 211999981 and 212000017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135734 + ... + 137286.

It is an arithmetic number, because the mean of its divisors is an integer number (6986007).

Almost surely, 2^212000030 is an apocalyptic number.

212000030 is an abundant number, since it is smaller than the sum of its proper divisors (235104418).

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

212000030 is a wasteful number, since it uses less digits than its factorization.

212000030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 212000030 is about 14560.2208087652. The cubic root of 212000030 is about 596.2732239005.

Adding to 212000030 its reverse (30000212), we get a palindrome (242000242).

The spelling of 212000030 in words is "two hundred twelve million, thirty", and thus it is an aban number.