211694212 has 6 divisors (see below), whose sum is σ = 370464878. Its totient is φ = 105847104.

The previous prime is 211694209. The next prime is 211694221. The reversal of 211694212 is 212496112.

It can be written as a sum of positive squares in only one way, i.e., 154902916 + 56791296 = 12446^2 + 7536^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26461773 + ... + 26461780.

Almost surely, 2^211694212 is an apocalyptic number.

It is an amenable number.

211694212 is a deficient number, since it is larger than the sum of its proper divisors (158770666).

211694212 is a wasteful number, since it uses less digits than its factorization.

211694212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52923557 (or 52923555 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 211694212 is about 14549.7151862158. The cubic root of 211694212 is about 595.9863704224.

The spelling of 211694212 in words is "two hundred eleven million, six hundred ninety-four thousand, two hundred twelve".