211045012 has 6 divisors (see below), whose sum is σ = 369328778. Its totient is φ = 105522504.

The previous prime is 211044997. The next prime is 211045019. The reversal of 211045012 is 210540112.

It can be written as a sum of positive squares in only one way, i.e., 142420356 + 68624656 = 11934^2 + 8284^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211045019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26380623 + ... + 26380630.

Almost surely, 2^211045012 is an apocalyptic number.

It is an amenable number.

211045012 is a deficient number, since it is larger than the sum of its proper divisors (158283766).

211045012 is a wasteful number, since it uses less digits than its factorization.

211045012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52761257 (or 52761255 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 211045012 is about 14527.3883406482. The cubic root of 211045012 is about 595.3765119251.

Adding to 211045012 its reverse (210540112), we get a palindrome (421585124).

The spelling of 211045012 in words is "two hundred eleven million, forty-five thousand, twelve".