212011330 has 8 divisors (see below), whose sum is σ = 381620412. Its totient is φ = 84804528.

The previous prime is 212011307. The next prime is 212011333. The reversal of 212011330 is 33110212.

It can be written as a sum of positive squares in 2 ways, for example, as 202407529 + 9603801 = 14227^2 + 3099^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212011330.

It is not an unprimeable number, because it can be changed into a prime (212011333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10600557 + ... + 10600576.

Almost surely, 2^212011330 is an apocalyptic number.

212011330 is a deficient number, since it is larger than the sum of its proper divisors (169609082).

212011330 is a wasteful number, since it uses less digits than its factorization.

212011330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21201140.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 212011330 is about 14560.6088471602. The cubic root of 212011330 is about 596.2838178734.

Adding to 212011330 its reverse (33110212), we get a palindrome (245121542).

The spelling of 212011330 in words is "two hundred twelve million, eleven thousand, three hundred thirty".