212265030 has 32 divisors (see below), whose sum is σ = 515579904. Its totient is φ = 55921376.

The previous prime is 212265013. The next prime is 212265037. The reversal of 212265030 is 30562212.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 212264988 and 212265006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212265037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40134 + ... + 45113.

It is an arithmetic number, because the mean of its divisors is an integer number (16111872).

Almost surely, 2^212265030 is an apocalyptic number.

212265030 is an abundant number, since it is smaller than the sum of its proper divisors (303314874).

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

212265030 is a wasteful number, since it uses less digits than its factorization.

212265030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85340.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 212265030 is about 14569.3181034666. The cubic root of 212265030 is about 596.5215675941.

The spelling of 212265030 in words is "two hundred twelve million, two hundred sixty-five thousand, thirty".