211424212 has 6 divisors (see below), whose sum is σ = 369992378. Its totient is φ = 105712104.

The previous prime is 211424201. The next prime is 211424219. The reversal of 211424212 is 212424112.

It can be written as a sum of positive squares in only one way, i.e., 197852356 + 13571856 = 14066^2 + 3684^2 .

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 211424212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211424219) 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 as a sum of consecutive naturals, namely, 26428023 + ... + 26428030.

Almost surely, 2^211424212 is an apocalyptic number.

It is an amenable number.

211424212 is a deficient number, since it is larger than the sum of its proper divisors (158568166).

211424212 is a wasteful number, since it uses less digits than its factorization.

211424212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52856057 (or 52856055 counting only the distinct ones).

The product of its digits is 256, while the sum is 19.

The square root of 211424212 is about 14540.4336936695. The cubic root of 211424212 is about 595.7328840702.

Adding to 211424212 its reverse (212424112), we get a palindrome (423848324).

The spelling of 211424212 in words is "two hundred eleven million, four hundred twenty-four thousand, two hundred twelve".