211002212 has 6 divisors (see below), whose sum is σ = 369253878. Its totient is φ = 105501104.

The previous prime is 211002167. The next prime is 211002217. The reversal of 211002212 is 212200112.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 203461696 + 7540516 = 14264^2 + 2746^2 .

It is a super-3 number, since 3×211002212³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211002193 and 211002202.

It is not an unprimeable number, because it can be changed into a prime (211002217) 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, 26375273 + ... + 26375280.

It is an arithmetic number, because the mean of its divisors is an integer number (61542313).

Almost surely, 2^211002212 is an apocalyptic number.

It is an amenable number.

211002212 is a deficient number, since it is larger than the sum of its proper divisors (158251666).

211002212 is a wasteful number, since it uses less digits than its factorization.

211002212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52750557 (or 52750555 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 211002212 is about 14525.9151863144. The cubic root of 211002212 is about 595.3362616845.

Adding to 211002212 its reverse (212200112), we get a palindrome (423202324).

The spelling of 211002212 in words is "two hundred eleven million, two thousand, two hundred twelve".